Aaron has the TT Ford GT & TT Viper. I was just on the phone with him and then opened this page. We are going up to Jacksonville to mess around soon. If you like to drop me your phone number I will call you in advance. If you have a FGT my buddy Jason switches more FGT's to Turbos then you could imagine. I figure it would be around $50,000. That is the current price for a TT Viper with 1000rwhp. Maybe the FGT would be a few more dollars. Heffner also makes a cat back conversion that sounds awesome. You will find Jasons number and a few more of our car videos in this link.
http://www.heffnersperformance.com/