Pay in 4 interest-free payments of $372.50 Learn more
Ships within 48 hours · Estimated delivery Sep 11 - Sep 16
No cutting wires
Enables significant Power increase
CLS (C 219) 350 [2 Filters Required] (HP: 272 | Year: 04 > 06)
the vehicle has to be present at the RENNtech HQ in Stuart
and increasing the engines rev limiter
RENNtech ECU Upgrade | Bentley Continental Supersport | 660HP/663LB-FT lamborghini-aventador--2011-2022--6-5l-l539-v12-esr6361830 No cutting wiresRENNtech ECU Upgrade for Bentley Continental Supersports. Up to 660HP 663LB FT Gains: +39HP & +73LB FT Our proprietary Bentley ECU upgrade offers rock solid performance from RENNtech, the foremost tuning authority on Bosch and Siemens engine control units. These same units are utilized in Mercedes Benz vehicles, which RENNtech has been tuning since electronic engine management started to show up in vehicles during the mid 1980's, though our