Hey guys, some of you might already know that I've just recently got an S3 and so I'm not sure how it's engine is supposed to sound. I've only got two question and would appreciate any replies. 1) When I start the engine it takes like 1.5 secs to actually ignite and has a sort of rumbling noise. I'm not talking about the exhaust I'm talking more in the region of the Cam belts. 2) When accelerating there is a slight whistly noise from the engine, is there a factory fitted dump valve? P.S. Anyone know of any good spark plugs for the S3?? anyone fitted any?