RENNtech ECU+ Upgrade | W166 | ML63 AMG | SUV | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo audi-s8--d3-4e---2006-2010--5-2l-v10-esr7428051 for Comfort

for Comfort

Air Filters and Fuel System Upgrade

Created using state-of-the-art 3D CAD programs and analysis tools with multiple levels of revisions to refine the product and achieve an OEM level of quality and fitment

Our down pipes mate perfectly with the stock CL Class exhaust system and include all necessary mounting hardware and clamps

Adjusted setting loaded onto car via ODB2 port

RENNtech ECU+ Upgrade | W166 | ML63 AMG | SUV | 669 HP / 734 LB-FT | M157 | 5.5L V8 BiTurbo audi-s8--d3-4e---2006-2010--5-2l-v10-esr7428051 for ComfortECU+ Upgrade Up to 669HP 734LB FT Gains: +95HP & +111LB 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. Programming takes only a few minutes and the vehicle can