i have an 04 330i with the preformance pakcage, and i was wondering would doing the software upgrade make alot of difference to the car?
:werd:330Bimmer3 said:The Dinan software is pointless unless you have an exhaust and intake on your car. The software is designed to change the fuel to air ratio and some other crap. That ratio is disrupted by the intake and exhaust and basicly the chip pulls it all togeather. I don't think it would help you gain performance at all if you just got the chip. They might have a different software for what you want, but I don't know. I remember watching them while they downloaded my software, there was a section on the preprograming that asked what my mods were, you check what you have ex:intake, differential, throttle body. Good luck.