Just had a quick question if anyone can help. I just purchased and recieved a 2006 S4 B7 tiptronic. Absolutely Amazing car!! LOVE IT!!! I'm interested in the Hyperflow air induction kit. I've done some research, and have found differing opinions. Motodyne states that they do not recommend the high flow air induction kit if you have a single rail fuel line due to overfueling, However, Stratmosphere, reports gains of 10 HP over a broad range of RPMs. Does anyone have an opinion on this topic? Thanks guys!