We are proud to offer the only true solution for running a much larger than stock turbo. ME7 ECUs can only read 22.6psi with factory programming. Normal map tuning cannot change this limit. Our stage 4 tune includes scaling of every pressure variable inside the ECU so that it can read up to twice that of it’s original calibration, effectively allowing control of double the amount of boost pressure as before. Depending on how much boost pressure you wish to run, you may also need a boost pressure sensor upgrade. Contact us for more info!