Everything I have ever needed for my car with quick service you guys are the best.
I just have to say,I have a GXP Grand Prix 2008, has the HD... Still broke. I’m about to have to drop the subframe and rebuild the engine and I’m throwing around the idea of mating it with a North Star transmission. Far superior in about every way from this HD.... Maybe for the 3.8s I guess but the HD version still won’t handle that much torque...they’ll break drag racing with slicks.
4T65e Upgrade Kit
The parts appear to be of a very high quality! I would like to have received the necessary gaskets though!
4t65e HD Upgrade Kit
Great product . came together like buttcheeks, lol . less the 5 hours and I am rollin HD. Thanx ZZP.