I have xpipe and exhaust and also have intake and 2.8 pulley with predator set on the pully tune. I read on the faq page that the 2.8 is 15-17 psi and then predator says no more than 14psi on the pulley tune. Do I need to take it to have it tuned I have heard alot of guys say that the 2.8 will not pull that much boost so does anyone have a tune already that they can use to help me with mine or trade the fuel percentages. I will pay if need be and what boost are you guys seeing with my mods