I've just bought a Saab 9-3 Aero which, for those who don't know (or don't care!!), is a front wheel driven 2 litre turbocharged (210bhp) car. I've come to you guys as an ex-audi owner to ask how you get the best traction from your A4 1.8T's. I'm looking to chip it to 250bhp so traction will be a problem!!! Also does anyone know of any engine chippers apart from AMD and Superchips that will do custom chips?