its been in there since i bought the car! so iv never felt the full potential of the 16g that was set at 20psi when i bought it and never felt quick! iv been spending a good bit of money trying to make it quicker,fmic,hard pipe,keydriver chip,they never made much difference,so I'm just waiting for my new manifold to put on and cant wait to take it for a spin! should be different car! /ubbthreads/images/graemlins/grin.gif