RENNtech ECU+ Upgrade | W166 | GLE 450 SUV | 392 HP/463 LB-FT | 3.0L V6 BiTurbo | M276 mercedes-benz-sl-class--231---2017-present--sl65-amg-esr6416839 Gains: +98HP & +140TQ

Gains: +98HP & +140TQ

Carbon Fiber Airboxes: Substantially larger than stock and a symmetrical design that delivers over 30% more filter area allows the engine to perform at the highest level in both stock and tuned form

which has been designed to be used in conjunction with the car’s standard ECU settings to eliminate the possibility of any engine error check codes caused by increased emissions flow

By pressing Button 1 on the remote control

Diverter Valve and Air Filters | Gains: +91HP

RENNtech ECU+ Upgrade | W166 | GLE 450 SUV | 392 HP/463 LB-FT | 3.0L V6 BiTurbo | M276 mercedes-benz-sl-class--231---2017-present--sl65-amg-esr6416839 Gains: +98HP & +140TQECU+ Upgrade Up to 392 HP 463 LB FT Gains: +30 HP & +84 LB FT RENNtech tuning products are certified to meet CARB standards in all 50 States. RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock