I've finally gotten around to doing some logging with my VAGCOM. The results look ****! Apperently I'm only getting a max of 163.5 hp at 5080 RPM and 183 lbft at 2720 RPM! I'd appreciate any advice on where I should start to try and get this sorted. New MAF? What else? I've a 1999 Audi S3 APY. It seems quite slow for something that's meant to have 210bhp. There's no fault codes showing up in VAGCOM. I've just had it serviced, the throttle body cleaned\realigned. MAF checked. So I've followed the guide mentioned http://www.audi-sport.net/vb/showthread.php?t=67011 for logging. I stuck the car in 4th gear and took from 1000 RPM up to the red line. I did two runs logging 002, 115, 120. I used the data from 120 to create my graph. Here's the data and graphs from my first run (ignore the 001 - i meant to log 115!). Max of 162 hp at 5640 RPM and 172 lbft at 2640 RPM. Here's the data and graphs from my second run (i logged 115 correctly here!). Max of 163.5 hp at 5080 RPM and 183.2 lbft at 2720 RPM.