RENNtech ECU Upgrade GL 450 (X166- 501 HP / 576 LB-FT for M278 Biturbo) mercedes-benz-glc-class--253---2016-present--glc-43-amg-esr6444157

RENNtech ECU Upgrade GL 450 (X166- 501 HP / 576 LB-FT for M278 Biturbo) mercedes-benz-glc-class--253---2016-present--glc-43-amg-esr6444157RENNtech ECU Upgrade for 166 GL 450 BiTurbo. Up to 501HP and 576LB FT. Gains: +139HP & +170LB 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

RS7 (C8 4K)

6 Series (F12) 640 i (HP: 320 | Year: 11 >)

Complete the look with a set of two exquisite tailpipes in titanium

SL 63 (R230) Stock Performance:

370 HP @ 5500 RPM

7L V8 BiTurbo Stock Performance:

The maximum power number reached with the RENNtech ECU+ Upgrade for the W463 - G 550 4x4² is up to 523 HP and 583 LB-FT

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

R1 Performance Package for 230 - SL 600

RENNtech is proud to introduce an all new rear decklid spoiler design for the Mercedes-Benz C-Class Coupe

With the proprietary RENNtech ECU Tuning the C190 AMG GT R gains up to +50 HP and +73 LB-FT

384 LB-FT @ 1