RENNtech ECU+ Upgrade | R172 | SLC 43 AMG | 416 HP / 460 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016-2020 mercedes-benz-c-class--204-sedan---2008-2014--c-350-esr9867207 All parts are tested in-house

All parts are tested in-house as well to ensure years of 100% trouble-free and leak proof operation

obtains higher power numbers than rated from factory

With the proprietary RENNtech ECU Tuning the W213 - E63 AMG S 4MATIC+ gains up to +82 HP and +84LB-FT based on power numbers measured by RENNtech

The ECU Plus Upgrade brings the C292 - GLE 43 AMG Coupe up to 416 HP and 460 LB-FT

RENNtech ECU+ Upgrade | R172 | SLC 43 AMG | 416 HP / 460 LB-FT | M276 | 3.0L V6 BiTurbo | MY2016-2020 mercedes-benz-c-class--204-sedan---2008-2014--c-350-esr9867207 All parts are tested in-houseThe ECU Plus Upgrade brings the R172 SLC 43 AMG up to 416 HP and 460 LB FT. Gains: +41 HP and +62 LB FT. RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our 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