RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.
RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.
With the proprietary RENNtech ECU Plus Upgrade the R172 - SLC 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 Plus Upgrade for the R172 - SLC 43 AMG is 416 HP and 460 LB-FT.
Performance Numbers Overview
SLC 43 AMG Coupe (R172 | M276 | 3.0L V6 BiTurbo) Stock Performance:
SLC 43 AMG Coupe (R1722 | M276 | 3.0L V6 BiTurbo) Modified Performance: