I installed the MM ecm the other day and I must say I am impressed.. woke the car up a whole lot and was very simple to install. it also comes with a remote to switch back to stock on the fly.. its a bit pricey but worth it imo. I have drp intake, drp intercooler pipes, magnaflow cat back on also stock setting I peak at 20 psi then hold 17-18 until high rpm's when I put the ecm on the 2 setting, im peaking 25 psi and holding 23-24. I also noticed a difference in feel while out of boost. has a bit more spunk before the turbo spins up..