its really a bad idea even though it might work. i was going to try it but after taking my boost controller off and just using the AP, my boost seemed to hold even more steady and higher in the rpm range without any spike, plus with the MBC you cant really go WOT in 5th and 6th without over boosting. The AP manipulates the FBCS pretty darn well and you still have the benifits of ecu saftey features as well. with the MBC your taking a chance.