Description
Maximize the performance of your Mercedes-Benz with the Weistec M273 ECU Tune. Specifically designed for the naturally aspirated 5.5L V8 engine, this upgrade delivers exceptional power gains and transforms the driving experience, providing responsiveness and excitement at every throttle input.
Power Gains You Can Feel
- W.1 Tune: Gain up to +34 HP and +29 TQ.
- W.2 Tune: Gain up to +44 HP and +39 TQ.
Key Features:
- Improved Throttle Response: Enjoy quicker, more precise acceleration for an enhanced driving experience.
- Optimized Fueling: Engineered for maximum efficiency and performance.
- Optimized Ignition Timing: Delivers consistent, reliable power across the entire powerband.
Complete Performance Transformation
Combine the ECU upgrade with a Weistec TCU Tune to refine your vehicle’s transmission behavior, creating a smoother, more seamless connection between the engine and drivetrain.
Cypher Handheld Tuner Support
With the Cypher Handheld Tuner, switching between stock settings, Weistec's optimized tune, or other Weistec ECU calibrations is effortless. This flexibility allows you to tailor performance to your driving style or specific needs.
Vehicle application:
2010 Mercedes-Benz CL500 Coupe (C216) 5.5L V8 (M273)
2009 Mercedes-Benz CL500 Coupe (C216) 5.5L V8 (M273)
2008 Mercedes-Benz CL500 Coupe (C216) 5.5L V8 (M273)
2007 Mercedes-Benz CL500 Coupe (C216) 5.5L V8 (M273)
2006 Mercedes-Benz CLK500 Convertible (A209) 5.5L V8 (M273)
2005 Mercedes-Benz CLK500 Convertible (A209) 5.5L V8 (M273)
2009 Mercedes-Benz CLK500 Coupe (C209) 5.5L V8 (M273)
2008 Mercedes-Benz CLK500 Coupe (C209) 5.5L V8 (M273)
2007 Mercedes-Benz CLK500 Coupe (C209) 5.5L V8 (M273)
2006 Mercedes-Benz CLK500 Coupe (C209) 5.5L V8 (M273)
2010 Mercedes-Benz CLS500 Coupe (C219) 5.5L V8 (M273)
2009 Mercedes-Benz CLS500 Coupe (C219) 5.5L V8 (M273)
2008 Mercedes-Benz CLS500 Coupe (C219) 5.5L V8 (M273)
2007 Mercedes-Benz CLS500 Coupe (C219) 5.5L V8 (M273)
2012 Mercedes-Benz GL500 Base (X164) 5.5L V8 (M273)
2011 Mercedes-Benz GL500 Base (X164) 5.5L V8 (M273)
2010 Mercedes-Benz GL500 Base (X164) 5.5L V8 (M273)
2009 Mercedes-Benz GL500 Base (X164) 5.5L V8 (M273)
2008 Mercedes-Benz GL500 Base (X164) 5.5L V8 (M273)
2007 Mercedes-Benz GL500 Base (X164) 5.5L V8 (M273)
2006 Mercedes-Benz GL500 Base (X164) 5.5L V8 (M273)
2011 Mercedes-Benz S500 Base (W221) 5.5L V8 (M273)
2010 Mercedes-Benz S500 Base (W221) 5.5L V8 (M273)
2009 Mercedes-Benz S500 Base (W221) 5.5L V8 (M273)
2008 Mercedes-Benz S500 Base (W221) 5.5L V8 (M273)
2007 Mercedes-Benz S500 Base (W221) 5.5L V8 (M273)
2006 Mercedes-Benz S500 Base (W221) 5.5L V8 (M273)
2005 Mercedes-Benz S500 Base (W221) 5.5L V8 (M273)
2014 Mercedes-Benz R500 Long (V251) 5.5L V8 (M273)
2013 Mercedes-Benz R500 Long (V251) 5.5L V8 (M273)
2012 Mercedes-Benz R500 Long (V251) 5.5L V8 (M273)
2011 Mercedes-Benz R500 Long (V251) 5.5L V8 (M273)
2010 Mercedes-Benz R500 Long (V251) 5.5L V8 (M273)
2009 Mercedes-Benz R500 Long (V251) 5.5L V8 (M273)
2008 Mercedes-Benz R500 Long (V251) 5.5L V8 (M273)
2015 Mercedes-Benz G550 Base (W463) 5.5L V8 (M273)
2014 Mercedes-Benz G550 Base (W463) 5.5L V8 (M273)
2013 Mercedes-Benz G550 Base (W463) 5.5L V8 (M273)
2012 Mercedes-Benz G550 Base (W463) 5.5L V8 (M273)
2011 Mercedes-Benz G550 Base (W463) 5.5L V8 (M273)
2010 Mercedes-Benz G550 Base (W463) 5.5L V8 (M273)
2009 Mercedes-Benz G550 Base (W463) 5.5L V8 (M273)
2015 Mercedes-Benz G500 Base (W463) 5.5L V8 (M273)
2014 Mercedes-Benz G500 Base (W463) 5.5L V8 (M273)
2013 Mercedes-Benz G500 Base (W463) 5.5L V8 (M273)
2012 Mercedes-Benz G500 Base (W463) 5.5L V8 (M273)
2011 Mercedes-Benz G500 Base (W463) 5.5L V8 (M273)
2010 Mercedes-Benz G500 Base (W463) 5.5L V8 (M273)
2009 Mercedes-Benz G500 Base (W463) 5.5L V8 (M273)
2009 Mercedes-Benz CLK550 Convertible (A209) 5.5L V8 (M273)
2008 Mercedes-Benz CLK550 Convertible (A209) 5.5L V8 (M273)
2007 Mercedes-Benz CLK550 Convertible (A209) 5.5L V8 (M273)
2006 Mercedes-Benz CLK550 Convertible (A209) 5.5L V8 (M273)
2009 Mercedes-Benz CLK550 Coupe (C209) 5.5L V8 (M273)
2008 Mercedes-Benz CLK550 Coupe (C209) 5.5L V8 (M273)
2007 Mercedes-Benz CLK550 Coupe (C209) 5.5L V8 (M273)
2006 Mercedes-Benz CLK550 Coupe (C209) 5.5L V8 (M273)
2011 Mercedes-Benz SL500 Roadster (R230) 5.5L V8 (M273)
2010 Mercedes-Benz SL500 Roadster (R230) 5.5L V8 (M273)
2009 Mercedes-Benz SL500 Roadster (R230) 5.5L V8 (M273)
2008 Mercedes-Benz SL500 Roadster (R230) 5.5L V8 (M273)
2007 Mercedes-Benz SL500 Roadster (R230) 5.5L V8 (M273)
2011 Mercedes-Benz SL550 Roadster (R230) 5.5L V8 (M273)
2010 Mercedes-Benz SL550 Roadster (R230) 5.5L V8 (M273)
2009 Mercedes-Benz SL550 Roadster (R230) 5.5L V8 (M273)
2008 Mercedes-Benz SL550 Roadster (R230) 5.5L V8 (M273)
2007 Mercedes-Benz SL550 Roadster (R230) 5.5L V8 (M273)
2011 Mercedes-Benz S550 Base (W221) 5.5L V8 (M273)
2010 Mercedes-Benz S550 Base (W221) 5.5L V8 (M273)
2009 Mercedes-Benz S550 Base (W221) 5.5L V8 (M273)
2008 Mercedes-Benz S550 Base (W221) 5.5L V8 (M273)
2007 Mercedes-Benz S550 Base (W221) 5.5L V8 (M273)
2006 Mercedes-Benz S550 Base (W221) 5.5L V8 (M273)
2011 Mercedes-Benz ML550 Base (W164) 5.5L V8 (M273)
2010 Mercedes-Benz ML550 Base (W164) 5.5L V8 (M273)
2009 Mercedes-Benz ML550 Base (W164) 5.5L V8 (M273)
2008 Mercedes-Benz ML550 Base (W164) 5.5L V8 (M273)
2007 Mercedes-Benz ML550 Base (W164) 5.5L V8 (M273)
2012 Mercedes-Benz GL550 Base (X164) 5.5L V8 (M273)
2011 Mercedes-Benz GL550 Base (X164) 5.5L V8 (M273)
2010 Mercedes-Benz GL550 Base (X164) 5.5L V8 (M273)
2009 Mercedes-Benz GL550 Base (X164) 5.5L V8 (M273)
2008 Mercedes-Benz GL550 Base (X164) 5.5L V8 (M273)
2007 Mercedes-Benz GL550 Base (X164) 5.5L V8 (M273)
2006 Mercedes-Benz GL550 Base (X164) 5.5L V8 (M273)
2011 Mercedes-Benz CLS550 Coupe (C219) 5.5L V8 (M273)
2010 Mercedes-Benz CLS550 Coupe (C219) 5.5L V8 (M273)
2009 Mercedes-Benz CLS550 Coupe (C219) 5.5L V8 (M273)
2008 Mercedes-Benz CLS550 Coupe (C219) 5.5L V8 (M273)
2007 Mercedes-Benz CLS550 Coupe (C219) 5.5L V8 (M273)
2006 Mercedes-Benz CLS550 Coupe (C219) 5.5L V8 (M273)
2010 Mercedes-Benz CL550 Coupe (C216) 5.5L V6 (M273)
2009 Mercedes-Benz CL550 Coupe (C216) 5.5L V6 (M273)
2008 Mercedes-Benz CL550 Coupe (C216) 5.5L V6 (M273)
2007 Mercedes-Benz CL550 Coupe (C216) 5.5L V6 (M273)
2006 Mercedes-Benz CL550 Coupe (C216) 5.5L V6 (M273)
2011 Mercedes-Benz E550 Base (W212) 5.5L V8 (M273)
2010 Mercedes-Benz E550 Base (W212) 5.5L V8 (M273)
2009 Mercedes-Benz E550 Base (W211) 5.5L V8 (M273)
2008 Mercedes-Benz E550 Base (W211) 5.5L V8 (M273)
2007 Mercedes-Benz E550 Base (W211) 5.5L V8 (M273)
2006 Mercedes-Benz E550 Base (W211) 5.5L V8 (M273)
2009 Mercedes-Benz E550 4Matic (W211) 5.5L V8 (M273)
2008 Mercedes-Benz E550 4Matic (W211) 5.5L V8 (M273)
2007 Mercedes-Benz E550 4Matic (W211) 5.5L V8 (M273)
2006 Mercedes-Benz E550 4Matic (W211) 5.5L V8 (M273)
ECU Tuning Process: How do I get my ECU tuned?
