Husker98

iTrader: (11)

I originally purchased an acdelco 2 bar map thinking I'd be in the 12psi range but now I'm going to be maxing out the d1sc rpm wise on a 5.3 and thinking I'll be 16+ psi. I've heard people going over 15 psi with a 2 bar and being ok. Will a 2 bar still be ok or is a 3 bar needed?

brandon6.0

iTrader: (32)

2 bar is good to 15psi. but u can go a lil bit above that. The tune will just fall off and use the last row of the ve & timing.