Originally Posted by
kiwikermit
Cheers, I suspected that was the case... if i was after 18-20 psi i'm better off with a -34 rather than preloading a -31 heavily then.
......not really....i run 30 psi on a ut t38 using a -31 and would use a -31 on a t3-t4.....depends on what u want the car to feel like and ur tuners choice..........