Originally Posted by elperuano

I believe it was 450. I was on the dyno for like 3-5 hours. I can't remember cuz I drove thru all night and I let Jon do his thing while I passed out on the couch. The guys at Z1 r stand up guys n I'd recommend them to anyone. I'm running a stage 2 Gtm TT set-up. Put down 534hp and 496 torque.