I installed the
www.MaxxFab.com SS 3" DP with 3" cat a few weeks ago. It's the schmitz. Scott makes them specifically for the GT. He can answer all of your questions. GREAT customer service and VERY prompt with his reply emails. He has it set up to use the MOPAR exhaust. Or will adapt it to any other setup you need. IMHO, you can't go wrong installing it. GREAT bang for the buck. Good Luck with your decision. [8)]