asonofabeach69 Posted February 21, 2007 Report Share Posted February 21, 2007 Instead of trying to guess, I will just ask all of you out there. What is the diameter of the stock exhaust on our cars from the cat back? Quote Link to comment Share on other sites More sharing options...
OSVHURST/OLDS Posted February 21, 2007 Report Share Posted February 21, 2007 3.1 cars got 2", and 3.4 cars got 2.25" Quote Link to comment Share on other sites More sharing options...
asonofabeach69 Posted February 21, 2007 Author Report Share Posted February 21, 2007 Thanks, that is what I figured. Quote Link to comment Share on other sites More sharing options...
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