Description
Description:
RennTech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal. RennTech proprietary tuning module stores both the RennTech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.
RennTech intermediate level ECU upgrade for the Mercedes M278 engine still offers huge gains in performance across the entire RPM range, but with a slightly reduced peak HP and torque from our standard tune. This is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components or for areas and countries with extreme altitudes, temperatures or fuel quality concerns.
RennTech intermediate ECU tune increases performance from 329 HP and 354 lb/ft torque, up to an astonishing 392 HP and 432 lb/ft at the crank. This is a slight reduction from our standard tune but still offers white knuckle performance at one of the most affordable price points in the tuning market.
Features:
- Gains up to +45HP / 162Lb-FT
- Long-lasting and driver reliability
- Significant gains in horsepower
- Increases the performance
- Significant gains torque
- Increasing the engine’s rev limiter
- Incredible performance gains
Stock Performance:
- 329 hp @ 5,250-6,000 RPM; 354 lb-ft @ 1,600-4,000 RPM
Modified Performance:
- 392 hp @ 5,800 RPM; 432 lb-ft @ 3,110 RPM
Vehicle Fitment:
- 2015 Mercedes-Benz C218 CLS400
- 2016 Mercedes-Benz C218 CLS400
- 2017 Mercedes-Benz C218 CLS400
- 2018 Mercedes-Benz C218 CLS400
- 2019 Mercedes-Benz C218 CLS400
Note:
Images are for representation purpose only and may differ depending on application.






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