RENNtech ECU+ Upgrade | C257 | CLS 53 AMG EQ Boost | 485HP / 456LB-FT | 3.0L I6 Turbo EQ Boost | M256 | MY2019+

ECU+ Upgrade | Up to 485 HP / 456 LB-FT | Gains: +49 HP & +46 LB-FT

RENNtech Stage I Turbo Upgrade | C257 | CLS 53 AMG | 505HP/460TQ | 3.0L I6 Turbo EQ Boost | M256 | MY2018+

Includes Turbo Upgrade, and ECU Upgrade. Gains: Up to +69HP | +50LB-FT

RENNtech Stage II Turbo Upgrade | C257 | CLS 53 AMG | 540HP/515TQ | 3.0L I6 Turbo EQ Boost | M256 | MY2018+

Includes Turbo Upgrade, and ECU Upgrade. Gains: Up to +104HP | +105LB-FT

RENNtech | Hand-Held Suspension Module

RENNtech HSM | Digital Suspension Lowering Module

RENNtech EVM | Exhaust Valve Module

RENNtech Exhaust Valve Module | Permanently Open Exhaust Flaps.

RENNtech | Blow-Off Valve Adapter | 3.0L I-6 | Turbo Engines

RENNtech Blow-Off Valve Adapter for M256 – 3.0L Inline-6 Turbo

RENNtech | Carbon Fiber | Decklid Spoiler | C257 | CLS Coupe | Gloss Finish

RENNtech Pre-Preg Carbon Fiber Rear Decklid Spoiler | C257 – CLS Coupe | Gloss Finish

BMC Performance Air Filter For Mercedes-Benz 257-CLS 53 AMG | M256 3.0L Inline-6