I own a few cars and a street bike. 2000 Pontiac Trans Am ... 2003 Lexus GS430 ... 2003 Saab 9-3 ... and a 03 Yamaha R6 ... no major mods on anything but on my Trans Am. Estimate the horsepower at 385, never really got it dynoed. I have a Hypertech Power Programmer, Cam from Compcams, and then smaller shit like throttle body bypass and dual borla exhaust.