From doing a little trawling round the interweb I've tried to gather as much info as I can on the AJL 180 bhp engine in my car. There is a lot of contradictory stuff out there and I just wondered if anyone really knows what all the differences are that Audi implemented to take the early Quattro Sport from 150bhp to the later 180bhp. From what I can gather, the turbos are the same, and the engines are for all intents and purposes are identical, so is it purely ECU/ mapping in which they differ? Or are there other minor ancillary differences such as intercooler size, boost levels etc. Thanks!