Don't use me as an example. I seem to be the only one who lost torque when I did the x-pipe. Perhaps if I'd moved it 2" forward or 3" back it might have worked, but based on where I had it mounted I was extremely disappointed. As I've said in other posts, I lost so much power/ torque at 2500-3500 rpm that I had to tow in one gear lower than stock. If I had to guess, I lost 20-30 lb-ft in that rev range. Sounded great at 5500, but I don't drive that way.

__________________
'04 E53, 4.4 Sport
'97 E39 528i
'86 911 Carrera, track car
'96 BMW R1100R