RENNtech ECU+ Upgrade | C167 | GLE 63 S AMG EQ Boost | 745HP / 767LB-FT | 4.0L V8 BiTurbo EQ Boost | M177 | MY2021-2023 mercedes-benz-sl-class--231---2017-present--sl65-amg-esr6416839 5" Weight: Construction: 1-piece Cast

5" Weight:   Construction: 1-piece Cast Tire Size: 245/30-20

AMG GT C (C190 | M178 | 4

RENNtech ECU+ Upgrade

sculptural lip spoiler which transforms into tailored wing element extensions on either side

C 450 AMG BiTurbo (W205 - M276 Biturbo 4-MATIC Engine) Stock Performance:

RENNtech ECU+ Upgrade | C167 | GLE 63 S AMG EQ Boost | 745HP / 767LB-FT | 4.0L V8 BiTurbo EQ Boost | M177 | MY2021-2023 mercedes-benz-sl-class--231---2017-present--sl65-amg-esr6416839 5" Weight: Construction: 1-piece CastECU+ Upgrade Up to 745 HP 767 LB FT Gains: +97 HP & +54 LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States. RENNtech HHT (Hand Held Tuner) allows you the unlimited ability to switch between tuned and stock ECU programming without ECU removal! RENNtechs proprietary tuning module contains both the Tuned file as well as your vehicles Stock file. The module plugs directly into the OBD2 port and delivers the file you