2002 4.0 V6 K&N - Sound Quality | Page 2 | Ford Explorer Forums

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2002 4.0 V6 K&N - Sound Quality

Well IMO, I drive it good, not slamming on the gas o brakes etc... But still for some reason it seems low. During the spring and summer months, how much better mileage should I look at?

We keep our cars, never trade in or sell (unless the car is bad or somethin), so do you think it'll be a good investment? I also want it to sound better aswell, an exhaust would do that. Would I need a whole new exhaust or will just a new muffle from like Borla or someone work?
 






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