Cat BACK EXHAUST
Posted: Mon Jan 17, 2011 9:44 pm
ANYBODY tell me is this a true increase in power & MPG or just sounds good and you think you got something? WHAT If I just removed the resonator? I suppose If I remove the cat I will get all kinds of ECM fail codes? But does all these brands of exhaust cat back systems or is it all for the "Tone" IF SO WHY NOT just change the muffler???