Originally Posted by SAM@GTM

The map that's supplied with every kit is good up to 14 psi, since that we are using Maf base tuning it does not matter what climate or altitude the car is at the ecu will always hit its afr target so there is really no need for you to tune the car. Its is a 100 % plug and play system .

This is 100 % proven, To this day after selling many many GTM TURN KEY TURBO kit with our flash there has never been one incident where the tune was off, the car will always do 11.2 to 11.6 Afr from 7 psi all the to 14 psi .

On the standalone option we do have that also available but honestly why?

We have done over 600 RWHP on the system that comes with the kit with out any problem .

Sam