Torque Converter Upgrade for Mercedes V8 (M156)- Lock-Up Clutch Upgrade mercedes-benz-cls-class--218---2015-2018--cls63-amg-biturbo-4matic-esr2890927 The RENNtech performance turbo upgrade

The RENNtech performance turbo upgrade is truly the ultimate upgrade for your E63 (S) AMG Sedan and Wagon

RENNtech M157 Biturbo ECU+ Upgrades are TÜV approved

Up to 392HP and 432LB-FT

Stage II Turbo Upgrade and Fuel System Upgrade | Gains: + 198 HP

Gains: +73HP & +85TQ

Torque Converter Upgrade for Mercedes V8 (M156)- Lock-Up Clutch Upgrade mercedes-benz-cls-class--218---2015-2018--cls63-amg-biturbo-4matic-esr2890927 The RENNtech performance turbo upgradeRENNtech Torque Converter Upgrade for Mercedes V8K Lock Up Clutch Upgrade. While slippage in the torque converter is important under acceleration, this slippage becomes a liability once cruising speed is achieved. The lock up clutch controls this slippage and creates a solid connection between the engine and transmission. If the load on the clutch is too much, slippage can occur leading to excessive heat and wear. The RENNtech lock up clutch upgrade