zzp shift kit or intense shift kit

They really don't need them unless you drive hard. It's also a good practice to install them on a GXP because they will always run hotter, and I suppose a modded GTP. The goal is to keep them not much higher than 200° if possible. Many perfer the 175 area for transmissions. There's no reason for them run hotter than a combustion engine.

My tranny runs to cool now

Yeah, you went pretty far with the cooler idea. Parallel flow design, right?