Quote Originally Posted by JamesIvey24 View Post
I wouldn't put anything or disturb anything in between the trans and the radiator line, as that is somewhat of a pressure line and I've seen and heard many issues, leaks, lines popping off, etc...and that goes for more than just these 3800 powered cars. Personally I wouldn't ever put a trans cooler in these cars, however...if a person would choose too, it's safer to insert it after the radiator, before the return side of the trans.
Sorry but that is just ignorant. The GXPs bassically need a trans cooler to survive under abuse in stock form and anyone making any kind of power with an aftermarket torque converter needs one. I didn't have one of my Billet 3000 stall and the trans jumped to 260 in one pull. If done properly with hoseclamps and the right size barbs it will not leak.