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      12-28-2012, 07:04 PM   #3
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Drives: 2011 BMW 335i (e90) Black/Tan
Join Date: Oct 2011
Location: Dallas, TX

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Originally Posted by Dark_Knight_335 View Post
Nice. Wonder if it had to do with different N55 roms (do some of us have different ones? It's the same engine, no?)
ROMs are simply how BMW differs each car based on features. You and I might have identical cars except maybe I have a heated steering wheel and you don't. That small difference can mean that you and I have different ROMs. I know that seems like a really vague explanation, and it is pretty simplified, but it really is just something on the ECU that differentiates the BMWs based on their features.
2011 E90 335i LCI // Jet Black / Beige Dakota Leather / Double-VANOS/ Premium / Sport
Mods // Cobb Stage 2+ Aggressive / ER Charge Pipe / AR 4" Down Pipe / AA FMIC / LUX H8 v3 Angel Eyes / HPB Interior LEDs / Wavetrac LSD
Other // Shell Rotella T6 5w40 / 18" APEX EC-7 Wheels (9" Front|9.5" Rear)