RENNtech ECU Hand Held Tuner | HHT | CLS 63 AMG | C219 | 534HP/485LB-FT| 6.3L N/A | M156 | MY2007-2011 hammer-capsule 079) [Needs 2 Filters] (HP:

079) [Needs 2 Filters] (HP: 612 | Year: 05 >)62 (W240) 5

RENNtech Stainless Steel Downpipes with 200 Cell Catalytic Converters for 231 - SL 63 AMG BiTurbo M157-Series

212 - E 63 AMG BiTurbo 4-MATIC FaceLift (2014+)

354 HP @ 5600 RPM

The maximum power number reached with the RENNtech ECU Plus Upgrade for the C253 - GLC 43 AMG Coupe is 416 HP and 460 LB-FT

RENNtech ECU Hand Held Tuner | HHT | CLS 63 AMG | C219 | 534HP/485LB-FT| 6.3L N/A | M156 | MY2007-2011 hammer-capsule 079) [Needs 2 Filters] (HP:RENNtech ECU HHT (HandHeldTuner) for the 219 CLS 63 AMG. Up to 534HP and 485LB FT LB FT. Gains: +27HP & +20LB FT. 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 you choose directly to the ECU.