So I've purchased an '02 GTi which has been left untouched other then some nice coilovers. I have yet to sort the alignment out but I've replaced brakes, discs, tyres, cam and pump. I'm not particularly happy with the sound of the engine still but put this down to tappets. What do people suggest and recommend I do to give the engine a little more punch and refinement? Suggestions and costings please peeps.