Andy just a tip from my extra standpoint try Slick 50 oil additive in case you dont already have it or something similar because turns make oil sludge to one side. We dont have dry sump engines in S3's. And a tip from Reeves Callaway who turbocharged Corvettes, don't trail into a turn with engine braking on turbo engines, avoid it unless really necessary. Avoid engine braking with turbo'ed cars at all costs, it prolongs engine life massively, his advice and I follow it myself since I bought the car. This guy is in the know I'm sure you'll agree, Le Mans, General Motors approval for Corvettes, etc. well known guy in the tuning world in the late 80's and 90's. These first two tips I'm sure of. A third tip is not so sure but water injection/methanol might be a breath of fresh air whenever you need it switch that on some to cool things a bit. All the Best, George