I would suggest you get a
Lentech Street Terminator valve body instead. It is much better then a shift kit. The shifts are very firm. Plus when in drive it shifts for you, but when you shift the lever from 1-d-o it gives you full control over the shifts. It also changes your shift pattern to 1-2-3 with an eltronic overdrive so you don't have to do the 1-d-1 shuffle.