Okay, I used to have a 99 auto Maxima and I had a 50 shot of NO2 from a zex kit. It was great for about 6 months until my auto started slipping. I totally expected it, but I didnt care as I was getting rid of it soon anyway. I would love to get the boost on the Z but I will not jeprodize my babys tranny. Do you know has Nissan made this auto any stronger than normal? I know stillen know makes a valvebody kit for us with the slowmatic but I think its like 700 for the part alone, and I really dont want to spend that much. Any ideas? Thanks!!