January 19, 2017

RENNtech | 43 AMG | ECU Upgrade

RENNtech is proud to announce the release of the ECU Upgrade for the all-new M276 3.0L V6 BiTurbo 43 AMG Series.

Available for:
W205 - C43 AMG | C205 - C43 AMG Coupe | X253 - GLC43 AMG | C253 - GLC 43 AMG Coupe | W166 - GLE43 AMG | C292 - GLE43 AMG Coupe | R172 - SLC43 AMG

With the RENNtech ECU+ Upgrade the M276 - 43 AMG gains up to +41 HP and +62 LB-FT, based on power numbers measured by RENNtech. Please note that the Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU+ Upgrade for the M276 - 43 AMG is 416 HP and 460 LB-FT.


  • Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory.
  • Power gains are calculated with stock numbers measured by RENNtech
  • Crank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles.
  • Our numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.

Performance Numbers Overview 

43 AMG (M276 | 3.0L V6 BiTurbo) Stock Performance:

  • Rated by Mercedes-Benz:        362 HP @ 5,500-6,000 RPM;384 LB-FT @ 2,000-4,200 RPM
  • Rated by RENNtech:               375 HP @ 5,600 RPM;398 LB-FT @ 3,300-3,600 RPM
  • Mercedes M276 engine performance when measured, obtains higher power numbers than rated from factory.

43 AMG (M276 | 3.0L V6 BiTurbo) Modified Performance:

Rated by RENNtech:

  • 416 HP @ 5,450 RPM; 460 LB-FT @ 3,250-3,600 RPM
  • 345 awhp @ 5,450 RPM; 382 awtq @ 3,250-3,600 RPM

RENNtech - Product Pages

January 18, 2017

RENNtech | Carbon Fiber Decklid Spoiler | W205 C-Class Sedan

RENNtech is proud to introduce an all new rear decklid spoiler for all W205 Mercedes-Benz C-Class Sedan Models.

This highly integrated pre-preg carbon fiber spoiler compliments the sophisticated and refined C-Class exterior design language.

With the newly introduced hybrid-design blending the traditional Decklid spoiler with a winglet feature, the aerodynamic enhancement gives the C-Class’s exterior a seriously aggressive aesthetic.

The spoiler is coated inside and out with an all new acrylic UV protection system and is available in a matte and gloss finish.A second layer of UV protectant clear coating is also applied using traditional spray methods, in order to create a smooth finish.

Prepreg is widely known as the finest process in carbon fiber manufacturing and has been used for aerospace and military applications because of its superior consistency in weight, thickness, fitment, resin, carbon layout, and overall quality.
The pre-impregnated (prepreg) fiber method creates stiffer, stronger laminates with controllable, predictable results and the result is a consistent, tight fiber weave which not only looks amazing, but adds strength. Other companies use a lower cost, wet-layup method which results in components of inferior, strength, appearance and overall quality.

This spoiler is designed to fit any W205 - C-Class Sedan model from 2015 and up.

RENNtech Carbon Fiber Decklid Spoiler.
Designed in the U.S. | Produced in Germany

No drilling or modifications to the trunk are necessary, installs with 3M double-sided automotive tape.
Available in gloss and matte finish

Product Page – Matte Spoiler
Product Page – Gloss Spoiler

More Pictures - click here