Looking for some insight by anyone who may have done this. This summer I want to start going to the local 2 mile roadcourse and start tearing it up with the BMW's Honda's and other import crap. I've worked on enough of those overpriced doctor rides for the local money, thought a hopped up Cummins would be fun to try. I've added 12 pack Deaver springs, KORE sway bar, Fox steering damper, Defiant steering box support, 4 - 10" wide slicks, and traction bars. Considering an air type shifter for quicker shifts, and a momentary switch for the lock up. Any advice from someone with experience would be appreciated. Thanks, and Merry Christmas all.