Description
The Weistec M256 ECU Tune is engineered to elevate the performance of your Mercedes-Benz equipped with the inline 6-cylinder 3.0L M256 engine. Designed to provide a seamless increase in power, torque, and throttle response, this tune enhances drivability across the entire powerband, making every drive more exhilarating.
Unmatched Power Gains
The Weistec ECU upgrade transforms your vehicle into a high-performance machine capable of tackling any driving situation with ease. Experience the following gains:
- Stage 1: Up to +43 HP and +90 TQ.
- Stage 2: Up to +58 HP and +105 TQ with additional supporting modifications.
Key Features:
- Increased Horsepower and Torque: Feel the difference in acceleration and power delivery.
- Improved Throttle Response: Enjoy sharper and more immediate engine feedback.
- Optimized Fuel, Spark, and Boost: Engineered for performance and reliability.
- Removed Speed Limiter: Unlock the true potential of your M256 engine.
Performance Across the Powerband
The Weistec M256 ECU Tune delivers a flatter, more consistent powerband that pulls hard to redline. This ensures smoother, more predictable performance, whether you're accelerating from a stoplight or pushing your car on a back road.
Compatibility Notes:
- Designed specifically for the M256 inline-6 3.0L engine.
- Cypher Handheld Controller: Not compatible with 2020+ models.
Why Choose Weistec?
Weistec’s dedication to quality and performance ensures your vehicle will perform at its best. With rigorous testing and meticulous calibration, the M256 ECU Tune guarantees power and reliability, making it a perfect upgrade for any Mercedes-Benz enthusiast.
Upgrade your vehicle today with the Weistec M256 ECU Tune and experience a new level of power and precision.
Vehicle application:
2021 Mercedes-Benz GLE53 AMG 4Matic (V167) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz GLE53 AMG 4Matic (V167) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz GLE53 AMG 4Matic (V167) Turbocharged 3L I6 (M256)
2021 Mercedes-Benz CLS53 AMG 4MATIC (C257) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz CLS53 AMG 4MATIC (C257) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz CLS53 AMG 4MATIC (C257) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz CLS53 AMG 4MATIC (C257) Turbocharged 3L I6 (M256)
2021 Mercedes-Benz E53 AMG 4MATIC (W213) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz E53 AMG 4MATIC (W213) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz E53 AMG 4MATIC (W213) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz E53 AMG 4MATIC (W213) Turbocharged 3L I6 (M256)
2021 Mercedes-Benz AMG GT53 4 Door Coupe 4MATIC (X290) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz AMG GT53 4 Door Coupe 4MATIC (X290) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz AMG GT53 4 Door Coupe 4MATIC (X290) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz AMG GT53 4 Door Coupe 4MATIC (X290) Turbocharged 3L I6 (M256)
2021 Mercedes-Benz AMG GT43 4 Door Coupe Base (X290) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz AMG GT43 4 Door Coupe Base (X290) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz AMG GT43 4 Door Coupe Base (X290) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz AMG GT43 4 Door Coupe Base (X290) Turbocharged 3L I6 (M256)
2021 Mercedes-Benz AMG GT43 4 Door Coupe 4MATIC (X290) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz AMG GT43 4 Door Coupe 4MATIC (X290) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz AMG GT43 4 Door Coupe 4MATIC (X290) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz AMG GT43 4 Door Coupe 4MATIC (X290) Turbocharged 3L I6 (M256)
2021 Mercedes-Benz GLE450 Base (V167) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz GLE450 Base (V167) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz GLE450 Base (V167) Turbocharged 3L I6 (M256)
2021 Mercedes-Benz CLS450 Coupe (C257) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz CLS450 Coupe (C257) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz CLS450 Coupe (C257) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz CLS450 Coupe (C257) Turbocharged 3L I6 (M256)
2021 Mercedes-Benz S500 Base (W223) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz S500 Base (W223) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz S500 Base (W222) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz S500 Base (W222) Turbocharged 3L I6 (M256)
2017 Mercedes-Benz S500 Base (W222) Turbocharged 3L I6 (M256)
2020 Mercedes-Benz S450 (EU) Base (W222) Turbocharged 3L I6 (M256)
2019 Mercedes-Benz S450 (EU) Base (W222) Turbocharged 3L I6 (M256)
2018 Mercedes-Benz S450 (EU) Base (W222) Turbocharged 3L I6 (M256)
2017 Mercedes-Benz S450 (EU) Base (W222) Turbocharged 3L I6 (M256)
ECU Tuning Process: How do I get my ECU tuned?
