FWIW, It only took me 2 60Es before I went TH400. I have never looked back. Of course that probably is not the best decision for a road course car.

 

FLP Level 4 here and I abuse it, if your not going to be putting out high 600's or low 700's than no need to go to a 4L80E. I talked to FLP and they told me that there are many cars running there level 4's even with 700 to the tire.

 

well where are you headed, m6 or manual valve body auto???????? if you go manual valve body make sure you get it in reverse pattern!!!!!!!!!!!!