RENNtech M157 Biturbo ECU+ Upgrades are TÜV approved!
Our proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.
Notes:
- We have found the M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.
- Power gains are calculated based on stock numbers measured by RENNtech. Crank Performance Numbers are calculated with a 18% Drivetrain loss on SUVs.
- Our numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.
- States known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.
|
Performance Numbers Overview
GLS63 AMG (X166 | SUV | MY2016+ | 4MATIC | M157 | 5.5L V8 BiTurbo) Stock Performance (at crank):
- Rated by Mercedes-Benz: 577 HP @ 5,500rpm; 561 LB-FT @ 2,000-4,500rpm
- Rated by RENNtech: 605 HP @ 5,500rpm; 626 LB-FT @2,800-3,900rpm
- Note: Mercedes M157 engine performance when measured, obtains higher power numbers than rated from factory.
GLS63 AMG (X166 | SUV | MY2016+ | 4MATIC | M157 | 5.5L V8 BiTurbo) Modified Performance (at crank):
- Rated by RENNtech: 638 HP @ 5,500rpm; 695 LB-FT @ 3,700rpm
523 awhp @ 5,500rpm; 570 awtq @ 3,700rpm
- Crank Performance Numbers are calculated with a 18% Drivetrain loss on SUVs.
|
**VIN NOTE** RENNtech often requires your vehicle's VIN number to process orders. Please leave this information in a note during checkout or email us with your order number after order is placed*
RENNtech has become the premier Mercedes-Benz specialist and Hartmut Feyhl himself is regarded by many as USA’s foremost authority in Mercedes tuning. His vast experience comes from 12 years spent at AMG Germany before serving as the North American division’s Technical Director. Prior to the tuning company’s merger with Mercedes-Benz in 1999, by the request of AMG Germany, Feyhl branched out on his own to start RENNtech and service the existing AMG North America customers.
Performance without compromise. This is the foundation upon which we have built our reputation. Established in 1989 by Hartmut Feyhl, RENNtech has evolved and grown from servicing AMG’s customers into the foremost authority on tuning and customizing AMGs and Mercedes-Benz. RENNtech also offers tuning solutions for Porsche, Audi and Bentley vehicles, along with other European luxury cars.
Over the years, we have developed high-performance products for virtually all Mercedes-Benz AMG vehicles. Some of the most notable among these are the 200 mph RENNtech E7.4RS (which claimed ‘Fastest Sedan in the World’ honors by Car and Driver Magazine in 1996) and the more recent 945 LB-FT 5.5L V8 Biturbo RENNtech R3+ Monster. Each of these vehicles are just a sampling of what RENNtech has achieved, featuring extreme performance, upgraded aesthetics and a fit and finish that rivals factory vehicles.
We design, engineer and manufacture our proprietary line of tuning products in-house at our facility which features a full fabrication and machine shop with CNC and rapid prototyping capabilities; in-house performance dynos, complete engine management and software tuning capabilities along with a complete service/repair/installation facility and a full-time design, engineering and sales staff.
Our headquarter facility is located just north of the Palm Beaches in Stuart, Florida
