Hey there! brand new to the site although not to Audi...i'm now on my 2nd after an A4 avant, and am now 4 months into the wonderful ownership of an A6 avant 2.7tdi! i had my old A4 1.9tdi chipped by revo to 185bhp, and am now looking to get the A6 done. has anyone had any dealings with superchips? i'm just concerned about audi's reaction to a modified car which is still in warranty! any advice would be great!