Hi, you probably get this all the time but I've just bought a 2.8 Quattro on an 'R and wondered what mods I can do engine wise? I would like increased BHP / better MPG. Engine is standard but I have just got a K&N induction kit. Has anyone used Irridium plugs? Do they make any difference? Anyone used any decent ignition leads? Anyone got theirs chipped? Any difference? Anyone running some sort of NOS concoction? I have 1k to spend on 'bits.' Also, would the lower springs from the 1.8t Quattro sport fit this car? Cheers in advance!