T-Sho New Member Jul 31, 2006 56 0 0 Aug 2, 2006 #1 Aug 2, 2006 #1 I am about to convert my 2003 GT to the Roush Side Exhaust system with Spin Tech mufflers and I was wondering how much horsepower will this conversion (without adding anything else) cost me? Keep in mind that my car currently is 100% stock.
I am about to convert my 2003 GT to the Roush Side Exhaust system with Spin Tech mufflers and I was wondering how much horsepower will this conversion (without adding anything else) cost me? Keep in mind that my car currently is 100% stock.
BLK_ROUSH Founding Member Feb 5, 2000 1,300 0 36 Newnan, GA Aug 2, 2006 #2 Aug 2, 2006 #2 I certainly hope you have your answer.
richsroush New Member Sep 6, 2004 5 0 0 Aug 19, 2006 #3 Aug 19, 2006 #3 You cant go wrong with spintechs. Hope your enjoying them