Just to give you an idea. I added: Headers, catless mid pipes, Magnaflow cat back, ported throttle body, a catch can, Predator tune, 180 stat, and a K&N filter. My car dyno'd at 363hp and 398 torque. I have since added a CMR tune but have not been back to the dyno. Those number put me to around 430 at the crank.