Originally Posted by rayz
but a PBX changed all of that and makes the car more responsive off the start.
Absolutely! It still impresses me 18 months after I had it installed. It may be a 'small' upgrade but it really does add more punch to the car's performance than what its numbers suggest. Best ever na I6 upgrade for me as I chipped my E36 320i with slight gain, but my E46 323i was not receptive to modding, so I had to have the tune reversed and left it at stock power.
328i M-Sport, Estoril Blue, Carbon XP 35 Tint, front heated seats, black Dakota, Sports Suspension, Anthracite Headliner, HUD, Pro Nav, Sunroof, hk 600w, Bi-Xenon, 19" 403M wheels, Reversing Camera, DAB+, Xenon, BT Ext Connect. JB4 on Map 2 with Catless DP produces awesome performance in Sport.