Transgo shift kit the way to go?
An easier to install alternative would be the TCI shift kit. I'm running that in my '02 and love it so far. It doesn't seem to shift quite as hard as my TransGo did in my '00 but I like it.
i heard from a lot of ls1 owners that it will mess up ur transmission, but thats just what ive heard. i just have an hpp3 and stiffined up my trans shift and now it shifts real stiff
Be carefull boosting that line pressure with the HPP3. Many say it's pretty hard on the tranny. BTW, your full throttle shifts are no harder now than they were.

