Originally Posted by xspower
The power band on the 2617 pipe is real short and comes on fast. It is a real short pipe. if your track is to small it may not be the pipe of choice for that application. Remember that the shorter the pipe the "more top end" you will get to faster and the less lower end you will have. The longer the smoother the power band and the longer the transition from the low to mid to high. A nice long "linear' curve you will have.
That was exactly my experience with it, but my track is fairly tight with enough low speed corners that it fell out of the powerband in 3-4 corners so I went back to the 2607 to put the tq down by 8 seconds at the southwest series race but a dogbone took me out at the 20 minute mark with a 16 second lead on 2nd place.
The IDM evo3 performed extremely well this weekend, it was more than a match for SL3's and 353's except for the first 5 minutes in the main. Some how these drivers were gaining 5 feet on me in the straight until after the first pit stop and then I was back to pulling them, guess they started off a bit too lean to run for 30 minutes.