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Lots of buzz over in the F8x board about a Belgian company (BR-performance) claiming to have cracked the new Bosch DME. The site lists ECU tunes for many Fxx models, including X3s! Thought I'd post in the X3 forum as there has been much discussion about tunes with the recent release of the Dinantronics.

Key Figures:

35i Stage 1: 365 bhp, 383 lb-ft (peak), 840 euro
28i Stage 1: 290 bhp, 332 lb-ft (peak), 820 euro

Both of these come in below D-Tronics (the 35i by almost half) and are actual ECU re-flashes, not piggyback tunes.

Currently the only way to do this is to send your ECU in, but it looks like AMS will be the US licensee/distributor for these tunes and that any official AMS shop will be able to do these in house. Not sure on the time-frame but potentially in the next month or two. I am talking to a local tuner about this, and will pass along any info as I get it.

Original Thread: http://f80.bimmerpost.com/forums/sho....php?t=1065967

F25 N55 tune (including dyno): http://www.br-performance.be/en-be/c...62-xdrive-35i/

F25 N20 tune (including dyno): http://www.br-performance.be/en-be/c...8i/?stage=4637