I haven't made any changes yet but I've noticed that alot of you guys run your rpm's up before you shift. When I did that I got 24 mpg. I must be missing something.Johnboy said:I am running the v&h slash/staggered pipes with stock air cleaner and stock ECU. I have the same sputtering problm in 1st gear at 25mph and in 2nd gear at 35-38mph. Like you if i am accelerating through those zones, no problems and no problems in any of th higher gears/speeds.