Quote:
Originally Posted by Wagner
Not sure how exhaust pressure released kills gas mileage, might be your foot on the gas to hear it 
Change of exhaust has nearly no effect on mpg, especially if you are making it MORE free flowing. |
If the exhaust is less restrictive you could be creating a rich environment (assuming you aren't somehow also getting more air to the motor) which could throw off gas mileage. The computer does compensate to an extend, but I'm skeptical of it ability to match a removed resonator..
That being said, I'd be surprised if removing the resonator would create measurable more flow...