Rob Herrod has already a 220 5.4. exhaust ready and a XR8/GT exhaust under development .They claims to get a 15-20rwkw gain out of the 3V 220 5.4 unit. Keeping this in mind if they achieved similar output on the XR8 you would be knocking on the door of 290kw (flywheel). Now as a 2k option (est), that's one powerful car. The thing to keep in mind is not letting the price venture into GT territory ($59,500). If your going to do that, your better off with a GT with no options IMO. Personally I lease cars, so the difference between and XR6T and an XR8 is about $80 p/month over 3 years. I will definitely consider the Turbo, but the 8's really my thing. By the way, this is my first Post so Howdy!!
