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Racing & Standalone ECUs

Racing & standalone ECUs offer the ultimate flexibility in tuning for your BMW race or street car. If your race-sanctioning body allows standalone ECUs, or if you're looking for a fully customized setup and the most power possible out of your modified BMW street car, this tuning option gives you the most freedom possible. Professional setup is highly recommended. Use our SEARCH BY MODEL feature to filter these items for your BMW.

Need help finding Racing & Standalone ECUs for your BMW? Call us at 877.639.9648, email us, or live chat for expert assistance.


AEM Infinity BMW E46 M3 Plug & Play ECU

Standalone ECU with open tuning, multiple maps, traction control, no-lift shift capability and more

Price: $3,874.99 – $3,934.99

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What customers are saying...

  • I’ve never dealt with a true “race” shop like BW and I really have enjoyed the experience. I always feel like I’m getting the best advice, and suggestions for true race car set up. Your technical expertise on even the minute details of building race cars is really impressive, and some I value greatly...
    - Paul Read More
  • I just can't express enough how impressed I am with you guys. Thanks so much for the great service from start to finish, and always done with a smile and as professional as possible. Our particular interaction has extended over many months and never have I felt that I wasn't getting first-class service...
    - Chris Read More
  • I just wanted to say what positive experiences I've had over the past few weeks. Your BimmerWorld sales staff have gone above and beyond to help me out, between their service and taking the time to answer all my questions, I'll be buying my parts from BimmerWorld whenever possible...
    - Aaron Read More
  • I would like to thank you and the guys for the service - I know I'm not an easy customer. I always have a lot of questions because I want to do it once and do it right (and not regret anything I buy). I have a budget for my build, and you guys get most of it, and from someone who's very conscious about his shopping...
    - Gislain Read More