G'day all,

I have a 2004 x5 3.0d. I like playing with my cars, so for a bit of fun to begin with, I removed the rear mufflers and put quad tips through the knockouts of the rear bar. Sounds good and no droning.

Next I'm doing a CAI, mainly for ease of filter maintenance, but it should lower intake temps and maybe have a bit more turbo noise too! (What a shame

The MAF is a bit of an issue though. Being bloody oval and not round is a problem. Does anyone have any experience running these motors MAFLESS?

Also, is there any open source software out there to flash our ECUs and if so, what is it? Is there some guys on here who are tuning via files?

Cheers