Epic Stage 2 ECU Race Tune - E9X M3

Proven to provide the most power from your S65 engine - +23hp / +27ft-lbs

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No other tuner has more experience tuning the S65 for the racetrack than Epic Motorsports. Their Stage 1 and Stage 2 software tunes deliver more power and torque than any other tuning program we have seen to date and Epic software has powered every BimmerWorld M3 race and project car from our shop in Virginia to the top of Pikes Peak. This is the Epic Stage 2 Race software for race or track-prepped cars running without catalytic converters and other race mods.


  • Tuned by the most experienced S65 builder in the US
  • +23hp / +27ft-lbs (a lot more comes with cat delete)
  • 8,600 RPM rev limit
  • Fuel & timing matched to premium fuel
  • Raised top speed limiter
  • Faster throttle response

The Stage 2 software is directed at E9X M3 cars that are built and prepped for track use. The fuel and timing maps are better optimized for premium fuel and additional coding has been done to ensure the check engine light and fault codes do not appear with cat-delete (and to ensure compliance with race series regulations). This software works best with 93 octane but can be used with 91 with slightly less power gain. Further refinements are made to the throttle maps for smoother and faster throttle opening, the top speed limiter is raised/eliminated, and the rev limit is raised to 8,600.

Epic software exceeds other tunes that are based on the factory 240E version. Epic reverse-engineered the stock software to go beyond the 240E update. There is no need, or benefit, to having the 240E update pre-installed before the Epic tune. This saves time and greatly simplifies the install process. The tuned file you receive back from Epic will already include the enhancements.

Our software is installed via a D-CAN cable (included) and your Windows laptop (compatible with XP, Win7, Win8, and Win10). The D-CAN cable is included at this price. Read and email your stock file and a tuned file will be returned to you. This is better than off-the-shelf tunes that never look at your original software.

Notice of Emissions Non-Compliance. This product is intended only for racing vehicles that may never be used, or registered or licensed for use, upon a public highway. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. It's use is prohibited in any motor vehicle that is subject to emissions inspection or control. It is not legal for installation or use on any pollution controlled motor vehicle in any state, province, or jurisdiction governed by, or which has adopted, CARB or EPA regulations. BimmerWorld may confirm a customer's racing license, entry, track participation, and we may ask for photos or proof of a permanent race car build. We reserve the right to cancel part(s) that are not for legitimate racing or track purposes. Some suppliers have shipping exceptions to certain states or territories, requiring extra delivery time. We will advise you of any delays.

BMW Fitments:
3 Series
E90 / E91 / E92 / E93 (06-13) > M3
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