Not looking to play with the engine too much, done 125k and my main concern would be the strain a map etc would put on the turbo. I've smoothed n drilled the air box for now until I get a filter n shield, done the n249 bypass. Going to take out the centre silencer and keep standard rear box, had a non resonated system on my a4 1.8t and that droned so much at speed. It's on Eibach sport lines, last car had coilovers and after a 300 mile round trip I thought I was gonna die from the aches! So basically it's subtle mods and gleaming paintwork