Description
Transform your BMW N55 into a high-performance machine with the Weistec Engineering ECU Tune. Known for delivering industry-leading ECU calibration, Weistec's N55 tune offers substantial power gains, sharper throttle response, and enhanced driving dynamics. With power increases of up to +96 HP and +94 TQ (Stage W.2), your BMW will achieve new heights of speed and acceleration. The tune optimizes fuel, spark, and boost, providing smooth, consistent power delivery across the RPM range.
This tune offers race-inspired features like "burble" exhaust sounds, available in "Off," "Mild," or "Aggressive" settings. Weistec also offers optional Cypher Handheld support, allowing you to tune your BMW from the comfort of your garage without sending in your ECU. Models built in 2020 require bench flashing, but Weistec's support team ensures a smooth and efficient tuning process.
Key Features:
- Substantial Power Gains – Increase up to +96 HP and +94 TQ with Stage W.2 (Stage W.1 adds up to +75 HP and +71 TQ).
- Two Stage Options – Choose between Stage W.1 for moderate gains or Stage W.2 for maximum performance.
- Throttle Response Enhancement – Experience sharper, more immediate throttle response for precise control.
- Customizable Burble Settings – Select "Off," "Mild," or "Aggressive" burble options for race-inspired exhaust notes.
- No ECU Send-In Required – Utilize the optional Cypher Handheld to flash tunes or revert to stock with ease.
- Fuel, Spark, and Boost Optimization – Enhanced for maximum power, efficiency, and driveability.
- Speed Limiter Removal – Push your BMW to its full potential with the speed limiter disabled.
- Cold Start Options – Custom configurations for race vehicles.
Fitment:
The Weistec Engineering BMW N55 ECU Tune is compatible with the following BMW models equipped with the N55B30 engine:
- BMW X1 xDrive35i (2013-2015, E84)
- BMW 135i / 135is (2010-2013, E82/E88)
- BMW M2 (2016-2018, F87)
- BMW X3 xDrive35i (2010-2017, F25)
- BMW X4 xDrive35i / X4 M40i (2014-2017, F26)
- BMW X5 sDrive35i / X5 xDrive35i (2013-2018, F15)
- BMW X6 sDrive35i / X6 xDrive35i (2011-2019, E71/F16)
- BMW M135i xDrive (2012-2016, F20/F21)
Legal Disclaimer
This product is not street-legal in all U.S. states. Check local emissions regulations before purchase.
Upgrade your BMW's performance with the Weistec Engineering N55 ECU Tune, delivering unmatched power, precision, and driving excitement.
ECU Tuning Process: How do I get my ECU tuned?
