Here's the official word on our updated software lineup for the 335i:
There will be three stages of tuning available. Stage 2 is the equivalent to what we've been selling so far. Stage 1 is a lower boost setting, and unlike stage 2 or 3, it will not require an upgraded oil cooler to maintain warranty coverage. Stage 3 is a higher boost setting than stage 2 and will require an upgraded oil cooler plus an intercooler, which we now offer.
To address complaints about low-end responsiveness, on all three stages we've revised our drive by wire programming to open the throttle quicker than our previous software versions. For those who are currently running our software, the updated stage 2 version is completely free. Just take your car to an authorized dealer and we'll cover the labor.
Here are the numbers:
Stage 1: 366hp@5700rpm / 379lb/ft@4300rpm*
Stage 2: 384hp@5700rpm / 421lb/ft@4300rpm
Stage 3: 398hp@5700rpm / 429lb/ft@4300rpm
*Result is for Stage 1 + Free flow exhaust
Specifics are on our website,
Dinan BMW | BMW Performance