I've been contemplating the torque booster kit for a while now. I'm currently running 12 psi on my BOSS with 720 RWHP. Wanting more torque but I don't want to lose anything up top. Wanted to do a 12 psi spring with the wastegate but am hearing some people say they lose some of the top end charge? I don't see how this is possible if the tune has the same timing and fueling up top with the same boost. It should be a win win situation.
I run 3.15 pulley with 11.7 spring on corn. Went from 3.6 pulley to the 3.15 with wastegate. Highly recommended!