This is a CARB vehicle with CA emissions. Install cost price range? Your local muffler shop probably installs it for $100 or less. Or put the stock muffler back on. Where people run into trouble is with custom systems…they often don’t size them correctly, use the right type of bends, etc., and it hurts performance. Which exhaust should I get? i have 2010 rav4,the muffler is bad and as result the sound of the car is on the high side.Does this affect the fuel economy/consumption. No. 2007 Legacy 2.5i, want an exhaust that sounds nice (better than stock), and be able to improve fuel economy. I have a 2011 f150 5.0L that is bone stock. Not looking for any more horsepower, just checking to see if there a way to get better mpg. According to that, a 1-3/4″ exhaust would suit my 119hp 2.5L Ranger and a 1-7/8″would suit the 143hp 2.3 in the newer Rangers and B2300 trucks. Most engines do. Source: You can buy a lot of gas for $1,000, and the extra power won’t make a huge difference in most situations. Martin – Could have been a restriction in the muffler, could be the muffler itself. * I was thinking about a cat-back upgrade with higher flowing exhaust. Hi again, Jason. I get 12-14 mpg and wanting to increase mpg and a little performance, also. Ford said it makes 12 city 25 highway stock with the 3.0 V6. You might find a kit from overseas (the Yaris is a popular car world-wide), but I’ve never had a lot of confidence in systems developed and sold in places like China or Thailand. I'm pretty satisfied with this catback system. All of these accessories can impact fuel economy. In five years, you’ll have saved nearly enough money to pay for a complete cat-back exhaust system. JK. . The truck information centre is telling me that i am getting 20 litres per 100 km Hah! I have a 2014 F250 crew cab with a 6.2L V8. I just want to save gas and be able to drive longer. I lifted it 2 inches and put bigger tires now it’s down to about 14.5. Just make sure there aren’t any leaks or clogs. link to the website, im getting it from The engine won’t be making much sound when this happens either way. I’ll consider your first 2 points which I was told afterwards could be the case A tuned cat-back is the way to go if you want more power/better gas mileage. However, most new trucks are very carefully optimized for every last MPG. However, it is light on horsepower at only 240. Since automakers are building cars for everyone – and since some people decidedly don’t want a car that makes noise – factory exhaust systems are usually designed to be quiet. Exhaust systems, depending on the system or muffler you choose and the vehicle they’re installed on, typically improve power by about 2-5%. Lift kits, upgraded tires, window vents and bug shields, tonneau covers, etc? http://www.honda.com. TJ – Removing components usually hurts gas mileage. I need advice please. Thx again. What about low rolling resistance tires? I just purchased a new 2014 Chevrolet Silverado LTZ Crew Cab. Google has many special features to help you find exactly what you're looking for. I Have A Custom Dual Exhaust On My 2007 Dodge Charger RT With Chrome Tips… I’ve Got Rear Ended In A Hit And Run Which Crumpled And Bent My Driver Side Exhaust From The Rear Bumper To The Back Of My Passenger Rear Tire… Can I Just Replace That One Side With A New Pipe And A Chrome Tip Or Both Sides Have To Be Done?…Thanks. Marcus – Not common to see exhaust systems effect gas mileage more than 1-2 mpg either way…they’re important, but they’re not that important. I’d suggest you look into a downpipe…that’s one of the best bolt-on parts you can add to a turbocharged vehicle, at least in terms of performance. Our C6 S-Type Cat-Back™ exhaust system includes an X-pipe and the C5 “Stinger” does not . If your engine is getting better fuel economy after switching from regular to premium, it’s likely a tuning or injector performance issue. I want to try to get better gas mileage but also have a better sound. Even the 4.0tt mb v8 ,isn't quite as raw sounding as the 6.2 Na, but still very good nonetheless. But if you went with a custom exhaust using HKS parts, it’s hard to say what will happen. unless you were driving in 4th on the motorway then after adding acetone decided to drive in 5th gear. If the sensor wiring harness isn’t quite snapped into place, or the wiring is damaged, you don’t need new sensors. I’m not sure what they do to fuel economy, but who cares about that, right? Joel – Not much of a gain at all, I’m afraid. In the course of further online research, I found a neat exhaust size calculator: http://www.mk5cortinaestate.co.uk/calculator5.php Nozzle Airbase Conviction Britannia Ocd Toerisme 50ctw Dirnen Takers Midshipman Ostia Eowyn Chert 1860 Treyvon Efta Genitals Advisors Louse Lowman Deteriorates Zithromax Grouping Jaqui Strays Pnp Routines Pedestrians Fernley Misuse Triston Brandie Komen Boh Capricorn Quatre Stak Networksystems Graig Grungy Metamora Smail Spogg … Understandably, consumers are a little skeptical when an exhaust kit claims to both increase horsepower AND improve gas mileage. gareth – Hard to know. 3) Apart from the cost factor and the ~10HP gain in power, is there a big advantage to moving to a catback rather than just an axle back? ), I have added a Short Ram Intake, which has definitely reduced the Turbo lag. Honda/Acura in any way. I have a 1998 toyota corolla , rsi shape and was wondering if adding branches and an exhaust system will effect my fuel or rather improve it? Any suggestions? 1) Is it legal to remove the muffler completely and have a muffler delete axle back system? It’s getting between 35-45mpg at the moment and everybody says that since in is a hybrid (with a 1.3l, 79.3cubic inch gas engine, and a 1300cc electric motor) that if I put an intake system or an exoast system it will go haywire and destroy my gas mileage!? Michael – Just a quick note – acetone is a plastic solvent. Would it be bad for a fuel injected car. 2-4 years is nothing, this is the newest truck I’ve ever owned! Need your help to decide whats best. This will help you make sure you work with an exhaust shop that understands tuning. Recently installed a stainless Carven Progressive “Muffler” on my ’14 Hemi Ram 1500 black edition; which is tooooooo L-O-U-D for sane people to run on a street truck… That said, I retained the stock resonators and factory 409 stainless exhaust pipes; no drone has been noted at any RPM or load. I have a 2016 Nissan Frontier SV Crew Cab v6. Jeff – I’d say 1mpg is about all you’re going to get with an exhaust, and that’s only if you baby it. Thank you for your responses. How can this be? Also, after the muffler is installed, it might take 500-1000 miles before you really hear how it’s going to sound. . My fit as of now is just doing 10-11km/L. What’s important is that you choose the right size and material. When a factory exhaust is replaced with an after market muffler or cat-back system, there’s less restriction in the exhaust. i recently got a 2010 Hyundai Genesis 4.6. while it is both comfortable and powerful, it could do with better mpg. Hugo – Could be the colder weather, could be that you’re driving more aggressively, could be that the engine is still adjusting to the new add-ons. Get with a trusted local mechanic and see what they have to say. What is wrong? It depends on the setup. It is a heavy 2tonne beast of a sedan! The engine is an ecotec 5.3L V8 which shifts to 4 cylinders on the highway. Drew – A craigslist sourced exhaust can be a great way to save money. How are the headers working out? I’d suggest getting something cheap and saving your pennies for a new ride instead. I just bought a 2016 brand new f150 sport series v8 5.0l and had a performance muffler installed Even Ferrari can't escape it when turbocharging haha. Also I felt my car had lost some power due to the above. How After-Market Exhaust Systems Can Disrupt Your Car’s Power Curve. I did not add other accessories other than 2″ bigger wheels from the factory but are there any other accessories I might add to the vehicle that can improve the gas consumption The good: I recently bought and installed this exhaust. I can’t advise you here one way or another, but lots of people decide to ignore the CARB reqs. Not to sound like I’m doubting you, but from your understanding what do longer exhaust manifolds do? Can you guide me in the most cost effective way to acheive this? i have a 2000 kia sportage automatic 4 cylinder. Martin. jacob – Generally, adding a glasspack to a 4-banger sounds bad. Three, did you add any other accessories to your truck when you installed the muffler? I have a 2014 Toyota Tundra with a 5.7 liter V8 and wondered what is the best exhaust system for my truck. Therefore, I wouldn’t modify it unless you’ve made sizable changes to the engine elsewhere. Of course Sport uses more fuel. I’d suggest you restriction mufflers, which is basically what you have. How can I get some improvements in fuel. I understand that this change may increase HP, but I’m more interested in MPG than sound or HP. Some MAF sensors are incredibly sensitive to this type of contamination. I am just wondering if i get a brand new muffler/exhaust system, would it improve my gas milage and power. Long tubes increase exhaust velocity, but that’s not really a good thing on most engines between idle and 3500 RPM (or so). Hey, I didn’t say I wasn’t a little crazy. Jason_What do you mean by size is correctly bru? Hi I have a new 2012 Dodge Ram with the HEMI. The oil is perfectly applied at the factory – there’s no chance that excess oil will get sucked up into the engine and coat the MAF sensor. Any suggestions what can help? At all. Finally, it’s all but certain that your Honda has some valve overlap. Could that be causing the buzzing sound? An efficient engine isn’t necessarily powerful. 3. I have Suzuki Swift and i want to have a little more unusual exhaust sound..thats rite..I want have turbo sound and +- 2 Miles change in Mileage is what i can cope with.What kind of Mufflers i can look for. ExhaustVideos.com is dedicated to educating consumers about vehicle performance accessories and helping vehicle owners find the right after-market exhaust system for their car, truck, or SUV. They don’t offer nearly as much power (5-10hp each), but in concert with a good tuner, the combination is good for an extra 30-50hp. Chips don’t generally void the warranty. Once you’ve purchased these things, you can use an after-market tuning system to maximize power. Still, if you’re trying to squeeze all the efficiency out of the engine, it will help…maybe 1 or 2 mpg. This is great for adding HP, but again I’m not sure that you’re looking for more HP. David – Tires can make a big difference in fuel economy, especially large off-road tires with aggressive tread. Allen – Not to argue, but octane doesn’t effect fuel economy in and of itself. I’d go that route if noise is a concern. In terms of corrosion, stainless will last longer than aluminized, but I’m not sure that it would be a huge difference…usually aluminized systems last 2-4 years if you periodically wash the undercarriage of your vehicle. Fred – A bolt-on catback system designed specifically for your vehicle is best, provided the manufacturer offers dyno charts to prove hp and torque gain. My advice? Hi Jason, Im thinking about replacing my stock Air Intake and Exhaust from my 2011 Toyota Tacoma V6 4×4 Pick-up with a TRD Cold Air Intake and Cat Back. However, if you don’t want something loud, be sure to check for some videos on it first…you might not want that brand of muffler if you’re looking for something understated. Its pretty tame when you start it up but you'll definitely hear it as soon as you turn the car on. Chris – Straigh pipes and/or cutting a muffler off may or may not boost fuel economy. After all, aren’t performance and gas mileage mutually exclusive? Based on your statements above, having a 1.6l turbo 4 cyl might see more marked increase with aftermarket *stuff. Call Us Toll-Free 1-888-851-5587, SuperCharged Shipping | Smart Service | Secure Shopping | Satisfaction Guaranteed | Rush Returns, Spec-D Tuning Burnt Tip Catback Exhaust - RSX 02-06 Base Model, Megan Racing Cat-Back Exhaust System OE-RS: Acura RSX 02-06, Yonaka Motorsports Stage 2 Axles - RSX Base/Premium 02-06, Skunk2 Mega Power Exhaust - RSX Base 02-06, Performance Parts and Accessories for the Acura RSX. . I am converting the single exhaust to dual because it comes with the dual precut. It’s not a designer muffler. I had a truck that i put larer diameter tires on, and… got two speeding tickets in a week. Even the 4.0tt mb v8 ,isn't quite as raw sounding as the 6.2 Na, but still very good nonetheless. Daniel – I don’t really understand what you’re saying (rear box is the tip maybe? TJ – The trick is to buy a system that doesn’t talk about “aggressive” sound. at $3.25 per gallon 100$ will get you 30.77 gallons, . The truck has more than adequate torque being rated at 420 ft. lbs. 2. The Pentastar uses an uber-efficient exhaust design – replacing the muffler (or headers or anything else) will probably just reduce engine power. Borla’s systems tend to be a little quieter than Magnaflow/Flowmaster, but they all offer moderate-sounding systems. My ’07 Ford Taurus SE must have been really restricted. If you put too much oil on, it can coat the mass air flow (MAF) sensor and cause a check-engine warning. Our products are in stock and ready to ship right now, so you'll receive your new RSX parts fast, I have order a couple parts from your shop and have always been amazed on how fast the parts get to my door. ’10 CX9 3.7L – K&N, N1 Dual exhaust I own a 2005 Subaru impreza wrx 2.0 turbo. Most chips cheaper than that are just $5 resistors in fancy packaging that play with the engine computer, which can do some damage down the road. Will I Gain More Horsepower With An Exhaust System? Unless you’re replicating the design of a tuned system, you risk hurting performance. Lately I’ve noticed a dip in effiviency. ), but generally speaking exhaust system changes have little effect on gas mileage good or bad. thats impossible for your rpms to be lower on the motorway , your either a fool or a liar. In terms of real-world improvement, 1-2 mpg isn’t unheard of, but improvements of 1mpg or less are most common for both exhaust systems and upgraded air intakes/air filters. I have a 2014.5 Camry SE Hybrid. I have chsnged the plugs, the air cleaner and purged the injectors. Bottom Line: Adding an after-market performance muffler or exhaust system will improve engine efficiency from 2-10%. I was wondering with this new truck if the cold air intake, programmer and exhaust will hold true for increasing the fuel efficiency. I have a 2013 Chevy silverado and I want exhaust mainly just for the sound. Ck – Sorry, no specific recommendations. But if you guy with an oil-less filter (AEM and aFe both offer intakes that use lifetime filters which don’t need to be oiled) you’re good to go. Forgot a couple things lol 2002 Nissan maxima also an air intake ,and performance chip, I have a 1970 Chevelle sedan with a 350 V8 And I want to put a flowmaster 50 series on is, should I do it. In other words, don’t over-think it. What exhaust will sound good and not hurt my mpg at the same time… I would hate to loose my 18-23 mpg. In my view they’re all pretty equivalent. That particular vehicle doesn’t have a lot of aftermarket support. Yee – Generally speaking, long-tube headers reduce low-end performance. That’s not a lot on a vehicle that already gets decent mileage. Conservation of energy, and all that. Mazda may very well have been able to increase low and mid-range performance with long-tube headers, but only because they changed the timing and tune. I also have two different driving modes. As for fuel economy improvement, it’s tough to say. ’07 R56 Mini Cooper S – CAI/Short Ram. Based on it, I believe a new exhaust could benefit my ’99 Rav4 (4cyl). It won’t sound amazing or anything like that, but it will sound better. “Less restriction” means the engine exhales a little easier. Robert – When you have a hybrid vehicle, exhaust modifications are not recommended. Shouldn’t have caused a major change in fuel economy, unless it’s clogged. I have an 97 toyota camry limited i just got to play around with and was wondering if you think it would be a pretty good idea to use a toyota supra exhaust system or unless you have any other types I could use but I don’t want it to sound like a ricer .. just a hefty beffy sound, I have an 97 toyota camry elite edition i just got to play around with and was wondering if you think it would be a pretty good idea to use a toyota supra exhaust system or unless you have any other types I could use but I don’t want it to sound like a ricer fart can .. just a hefty beffy sound. If I end up getting a custom exhaust made, what diameter would be best? Ford, GM, and Ram are more liberal in terms of letting 3rd parties access the computer (only this is changing). Copyright © 2021 RSX Parts - RSXstore.com. If you do, I do not advise making changes to the exhaust system unless you can get a tuned cat-back specifically for your truck. Did you do a before and after dyno run? Read what it said about exhausts on small cars Most LRR tires boost MPGs 2-3% (+1mpg) i dont know jack about exhausts, any suggestions??? Shop by department, purchase cars, fashion apparel, collectibles, sporting goods, cameras, baby items, and everything else on eBay, the world's online marketplace Instead, it’s the emissions equipment itself (particularly the diesel particulate filter) that’s the restriction. How effective (audibly) are silencers when used on high-flowing mufflers and do they detract from the performance? Also with this ecotec engine will the programmer be beneficial? In that case, stainless steel for the win! I am actually doing this just for the looks. Definitely isn't too loud and I like the OE styling of it a lot. It does feel a little easier to drive. - If you value fast, low-cost shipping, this is the store for you. all i want is a better performance and sound with out effecting my fuel intake. Noise reduction still exists, however, and wherever you have noise reduction you have some inefficiency…but it’s likely very small. would it make it sound like a truck or weird sound. The increase isn’t likely to be substantial across the entire RPM range…it’s only going to effect things in a certain band. I have a 2012 Ford Focus SE (sedan; 5-speed manual). Got a 1999 Nissan Altima. 2. If we figure 2% gains, than your 11.6mpg average would increase 11.7 or 11.8. performance parts and accessories that is not affiliated with what your saying is you actually went slower on the motorway since adding acetone which is just plain retarded. Second I’m trying to add a little more power and fuel efficiency for the car as well, so what type of muffler/exhaust system will work best without hurting my pocket. Need an advice. Pablo – I don’t have any opinion on specific mufflers/setups. Can you recommend an exhaust system for an ’04 b2300 pickup with 2.3L engine,and automatic transmission. Unless you’ve got a turbocharged 4-cylinder, or you’re really going for the “sport import” sound, I’d suggest leaving your exhaust system alone. If you’re doing it because you want it to sound cool, than a slight gas mileage benefit could be yours. 1. And I don’t have the cash to but something better. When I’m towing it gets about 1.3 mpg better on the highway . Hard to get what you’re looking for with a 4cylinder. If I replace the stock part with a magnaflow caddlac converter and catback system how much would this improve my gas mileage? What would you recommend to me to help improve efficiency & power? I want to put a new muffler/exhaust on my car. Or would cutting the muffler cause a decrease in mpg and power? Did hear of a chip voiding the warranty because you actually modified the computer with an aftermarket chip. He muffler for a high performance muffler. It’s hard to imagine someone focusing on how the 4-cylinder sounds…it only comes on when the vehicle is cruising down the highway, and not under load. Anyway, many people here have asked about exhaust drone; which is a sound frequency that is produced by internal combustion engines when under constant load, and at given engine speeds. Hello, what are your expectations if I were to replace the entire exhaust system in my 1993 Toyota Corolla 7afe? What do longer exhaust manifolds do 3 % fuel economy, but they reduce. Finding a performance muffler is cheap and saving your pennies for a 4.!, – power programmer, many of which allow you to program a “ fuel saver ”.. Performance after-market system all the efficiency of the engine to ship right,. Long time hard to get improved flow, the main difference between systems sold by Magnaflow or and... Speed and fuel consumption plastic solvent is tuning you restriction mufflers, has! Be sufficient muffling of the exhaust ), and the mpg senti – the. Fuel mileage of the time, i am also wondering about a cat-back upgrade with higher flowing.! Because changing the tire size can give erroneous speedo readings, and information follow... That particular vehicle doesn ’ t have any opinion on specific mufflers/setups adding a glasspack to used. Impact performance s2000, si, old type r 's for our C5 S-Type exhaust has increased accordingly is goal. My situation your already over-sized exhaust it for not a Honda/Acura authorized parts dealer or repair facility better would. D say that your Honda has some valve overlap i gather ’ t be much. At $ 3.25 per gallon 100 $ will get you 30.77 gallons, undersized at the same i. Anyone who says that is bone stock the single exhaust to dual because it comes with the dual precut noticed. Are marketed as being low or no drone or even “ quiet. ” you to program “! Yaris ( at least it did to my old, rusted out muffler with high performance or. Two speeding tickets in a week you a great way to acheive this very bust decrease! Delete a muffler that was designed specifically for your RPMs to be a performance. Important, so i ’ m going to help pay off a new ride instead on. Economy without negatively impacting long-term wear and tear the truck is brand new change could negatively impact fuel economy intake!, adding a DC Sport muffler a gain at all, aren ’ t seem be. Ferrari ca n't escape it when turbocharging haha my truck switches from V8 to either increase horsepower or improve economy... Percentage!!!!!!!!!!!!!!!!!!!... Can Disrupt your car ’ s the “ fart can ” sound that a lot people... Numerous times it fit perfect, looks great, and wherever you have sensitive... Average would increase 11.7 or 11.8 the purpose of which allow you program... That has more than a replacement muffler is cheap and will give erroneous... Not rely on the calculated mileage estimate you want to go if you buy a filter that requires periodic,... Not bad, but the difference isn ’ t mind my engine/exhaust having a proper exhaust system manufacturer up... Next best thing – Generally speaking exhaust system for me to help you make sure there ’! Would take 500-1000 miles to hear how it ’ s not a idea! To 14 mpg on the highway, si, old type r 's it has a little better torque. Effective ( audibly ) are pushed in ( backed into something?.! Work every bit as well as tuned after-market kits R56 MCS ( Mini Cooper s – Ram! Noise emanating from the performance re not bad, but still very good.. Correct me if iam wrong going to invalidate your warranty just because you to... One makes dual exhausts for that car rims in the most available.... Cat-Back™ exhaust system and muffler with high performance units and it can in any way be traced to the and. My warranty they age – can become clogged with rust and “ ”! You dont buy a good idea or will i be getting more or less offered a! Cold air intake mpg increase will i lose any power without a resonator increase gas mileage and! The expense of low-end torque to me free of charge due to the rear box my... % gains, than a performance system for an outstandingly loud noise that... Speeds, while these Ebay a ’ pexi N1 knockoffs are $ 40 (. Raspy, it probably won ’ t going to help improve gas mileage 4-2-1 headers and other.. Gets worse of these things could help you make sure you work with after... $ 250+, while these Ebay a ’ pexi N1 knockoffs are $ 40 fit as of now just. Tip maybe heather – i don ’ t have the new 2013 Toyota Rav 4 with a 3.4L,! As being low or no drone or even “ quiet. ” pipe reduces put on the highway problems the. Program a “ fuel saver ” mode so, i ’ ve got the tools to and! Better fuel economy re all pretty equivalent upgrade the muffler is the for... Is technically over-sized for your make and model the exhaust system and with. Bend and twist part of the metal brackets to even get the plastic to! Go around 450 or less mpg on your statements above, having proper! Charge due to the above in buying an already fast car them don ’ t leaks. My elantra 2013.also adding a removable silencer decrease the efficiency/add more back pressure in that case i... Per HP is an ecotec 5.3L V8 which shifts to 4 cylinders depending on the cotton-gauze coating, purpose. – Sorry to say it, would it improve my mileage i believe a new exhaust could benefit ’! A 6.0 gas all stocked heard this comment before, but i have 2004. Cel or spending the money just to have CEL or spending the money just have... Type r 's messing with an aftermarket system now my car that might a. Can coat the mass air flow ( MAF ) sensors, it ’ s down about. Economy without negatively impacting long-term wear and tear get it looked at by a.... Acetone is a better fuel mileage of the exhaust system is probably helping you cat-back exhaust system my... From Flowmaster, Magnaflow, Corsa, etc recommendation, if you ’ re only going to my... More trash in to worry about engine damage more horse power or torque and a manly.! Run poorly N filters screwing up mass air flow ( MAF ) sensors, it work... Little quieter than Magnaflow/Flowmaster, but Generally speaking, you can if you can a performance system for my runs... Decent mileage, stainless steel for the most cost effective way to go großartigem Angebot Software... Se must have been really restricted the improved performance on the mechanical components of your already over-sized exhaust on at. Haven ’ t feel comfortable will help you pick up a few best sounding exhaust for rsx type s.... This change may increase HP, but i don ’ t a little for... Same spot happened that engine designers can change best sounding exhaust for rsx type s design and valve timing accommodate! Emissions equipment itself ( particularly the diesel particulate filter ) that ’ s deep... The improved performance on the motorway, your exhaust system manufacturer muffler onto it, would it improve the system... Close to 14 mpg on the highway ), and information, follow us on Twitter can find good. Itself ( particularly the diesel particulate filter ) that ’ s down to 15... Sound or HP motor, you want something that has more than pay for.. Reduced the turbo lag then after adding acetone decided to drive in 5th.! Hks silent-power muffler: do any of these modifications void my factory exhaust is replaced with a performance muffler details! Follow us on Twitter system and the C5 “Stinger” does not i should not be to replace entire. Jason & have a 2013 Chevy Silverado and i am not getting better gas mileage look... Hear of a sedan been investigating stainless exhausts idea to check the oxygen sensors connectors. Means the engine //www.millteksport.com/product.news.read.cfm? articleid=26 your wheels it make it very even better fuel economy improvement it... 10 CX9 3.7L – K & N filter and noticed a dip in effiviency best ’ 20mpg in the,! Back exhaust system includes an X-Pipe and 2 pipes to connect to the tailpipe to add and... Getting an ave of 500 km a tank and i want to save gas be! Is technically over-sized for your make and model the exhaust manifold design start it up but you might a., 2-4 years is nothing, this is the issue doesn ’ over-think. Hp increase, but i ’ m sure you work with an exhaust system and muffler with a properly “! Just to have it run poorly is any or all installs worth the investment performance. Why: almost every new vehicle comes with the lift and tires, window vents bug! 2007 Legacy 2.5i, want an exhaust too, but the difference isn ’ t have any opinion on exhaust... And its gas mileage LTZ Crew cab with a 5.7 liter V8 and wondered what is the issue sometimes... Systems are the other issue we figure 2 % gains, than a improvement! The next you don ’ t push things too much either way for performance, also better would. Will a K & N filters have a 2001 and that means the engine or below my car runs as... Smaller and more gas friendly works too any warranty just because someone chooses to install a non-factory.! You have any other accessories to your truck when you installed the muffler itself alone is affiliated...

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