See "building a 7a-ge engine" on your computer. Personally I have fitted MK3 Golf GTi alloys & new 195x60/r15 Goodyear tyres, front and rear upper suspension struts, fast road front discs & pads, exhaust wrap, K&N 57i induction kit, 2.5" big bore exhaust system (decat) & lowering springs (35cm)...