Roush How much horsepower does a Roush Side Exhaust system take away???

Discussion in 'Special Production' started by T-Sho, 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.
  2. I certainly hope you have your answer.
  3. You cant go wrong with spintechs. Hope your enjoying them:nice: