Originally Posted by Psychorugby
I'm thinking way down the road as I am still under CPO warranty... but can the PBX Power Box be installed after the manifold and software upgrades??
I'm keen to know about this too. Say a PBX that can push the stock 330i with certain horsepower gain to XXX bhp, would a 328i after conversion achieve the same final XXX bhp by adding a PBX?