Re: 2007 mustang gt exhaust question
Originally Posted by Kochieey
sometimes when I turn my car on after it's been sitting in the sun for awhile the car gets really loud and the rpms jump all the way up but if I tap the gas pedal or put the car into gear it quites down and goes back down to normal rpm range... I have shorty headers cold air intake high flow cats x pipe and flowmaster outlaw mufflers with a race tune from bama American muscle...
You've been given the proper information. This sounds like it's just a normal cold start and it probably seems extremely loud since you have a full exhaust!
Let me know if you ever have any questions!
Dan Bailer | AmericanMuscle.com
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