I had it installed on my ATX in January. I had Aamco install it when they did my rebuild. Cost was about 30 bucks, small compared to the $2800 for the repair. It does require modification to the valve body. Keep in mind that I also had a new plantary, torque converter, valve body, and band installed along with the ATX rebuild kit. The kit does firm up the shifts quite a bit and I still haven't chiped the car yet. This is on a 98 Mystique LS V6 with about 85,000 miles on it.
