It is still early days with my P4. It has the free flow sports manifold, new cat, and then the sports exhaust. As per Dave's report, the loud pedal is linear with no jerking at all and the lower gears are all very lively. I think that it is easily a match and perhaps more so than my 89 P4 which had an extra 30bhp and was very quick indeed. It looks like a winner to me.