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 Our full carbon fiber airbox

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

optimizing air-to-fuel-ratios of the 5-liter Supercharged V8 -engine (AJ133) found in the Jaguar F-Type -series of vehicles

CLASS R LONG (W 251) 63 AMG 4-matic [2 Filters Required] (HP: 510 | Year: 06 > 07)

Made in Germany

Reduce risk of brake fluid boiling

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 Our full carbon fiber airboxRENNtech 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