I've read plenty of threads on this site and 370z. People with 7AT have cooling issues with supercharger. I'm currently running 2011 g37s 7AT 28k miles. I have a 34row oil cooler, trans cooler, and CSF radiator. Some People say that you need a trans upgrade and other say that just a oil and trans cooler is all you need..I want a definitive answer on this question. I don't track the car and will rarely push it in manual mode..is a upgraded tranny needed or will my current set up work fine? This is my DD so I want it to be reliable

 

The trans upgrade is for handling extra torque. You've done everything else I've read others do.

 

You won't need a trans upgrade unless you go air to air on the Stillen kit to make more power. I would address the SC Cooling issues first. The heat exchanger that comes with the kit is peletheic at best, if your not going air to air I'd look at tuning with speed density and not the MAFS heck I'd still move them( there in the wrong spot). The best solution if you want to stay with the heat exchanger is get the frozeboost one. I ran it and started a lot of guys using it before they came out with a air to air kit was a solid upgrade. I still ran into issues( blew up) because I wanna say the MAF placement and I was making 457 WHP@ 13 PSI, no Intake temp readings and