Yeah, the aftercooler fans & Hoosier D.O.T. DR's should improve the performance at the track BIG time. I never did get my car to the track last year, one reason is I knew I wouldn't be able to get off a good launch with the traction problems I have, now you understand what I mean about traction problems . I still have one big problem, there's no 1/4 mile tracks within 100 miles of where I live, just the little 1/8th about 15 miles away. So I'm either going to have to invest in a car hauler or get the wife to follow me with a jack & the DR's in her Envoy or my truck. On the fan deal one of the reasons I didn't think the pump was running was the fact that it dropped the aftercooler temp's 14 degree's in two minute's after getting the temp's up & turning the fans on. Cooling it that fast I thought it had to be just cooling what was sitting in the core.