Weistec M256 ECU Tune




*All 2020 models require bench flashing at this time.

The Weistec M256 ECU upgrade for the inline 6 cylinder 3.0 Liter engines provides substatial gains across the entire powerband.   With an increased yet still flat powerband to Redline, this ECU Tune creates a much quicker, much more responsive yet predictable blast to drive in any situation.




- Increased Horsepower and Torque

- Improved Throttle Response

- Optimized Fuel, Spark, and Boost

- Removed Speed Limiter

*Power gains vary based on model, modifications, fuel, and running conditions.




W1 Power Gains

W2 Power Gains