E90post is the best forum I have found and they do have a 335d section. Bimmerboost is pretty much garbage, I can't stand that forum (at least the N55 section).
Quote:
Originally Posted by simulatedwood
Hey Jet,
The car looks great, is this a auto or manual? Interested to see with e85 and stock turbos what it makes.
I just bought a 08 335i auto rwd a month ago. So far I am loving this thing as a dd. Found a open source freeware flash software from bimmer boost using a Bavarian Technic cable. Sucessfully flashed a tune for cobb stage 1 AP to my car for basically free. Have you looked into this at all? I believe using tuner pro you can tune as well. The flash tune is such a difference on these cars it is crazy even on pump gas, but be sure to replace the plugs if they have anywhere near 30k miles on them or the car will experience misfires.
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Mine is an N55 instead of N54, so the chassis is the same, but the engine/turbo/ecu is different. You should really look at the OFT flash for yours. Very cheap and gives you control over most of the ECU. Your stock turbos are a little laggier than my single, but they have better top end. New plugs 4k miles ago. Mine is also a 6AT, tranny shows to be solid up to 500wtq once you hit 550 it definitely starts to shorten the life. There are some upgrades available. Have you flashed the tranny with the Alpina software yet? Do you have paddle shifters?