RENNtech ECU Upgrade | CLS 400 | C218 | 392HP/432TQ | 3.0L BiTurbo V6 | M276 | MY2015-2018 audi-s5--b9-5---2020-2024--3-0l-v6-tfsi-esr2469158 Bumperette Delete for 2021 AMG

Bumperette Delete  for 2021 AMG GT Black Series

Our full carbon fiber airbox is more than just an impressive under the hood showpiece

and tested using state-of-the-art programs and analysis tools for achieveing an OEM level of quality and fitment at the RENNtech headquarters in Stuart

ECU+ Upgrade | Up to 740 HP / 806 LB-FT | Gains: +87 HP & +44 LB-FT

Made in Germany

RENNtech ECU Upgrade | CLS 400 | C218 | 392HP/432TQ | 3.0L BiTurbo V6 | M276 | MY2015-2018 audi-s5--b9-5---2020-2024--3-0l-v6-tfsi-esr2469158 Bumperette Delete for 2021 AMGRENNtech ECU Upgrade for 218 CLS 400 BiTurbo 4 MATIC. Up to 392HP and 432TQ. Gains: +63HP & +78TQ RENNtech M276 Biturbo ECU Upgrades are TV approved! 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