Description:
RennTech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal. RennTech 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 be reflashed at any time as many times as you wish.
RennTech 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. RennTech intermediate level ECU upgrade offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.
This is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components or for areas and countries with extreme altitudes, temperatures or fuel quality concerns. This is a slight reduction from our standard tune but still offers white knuckle performance at one of the most affordable price points in the tuning markeT.
All RennTech HSMs are adjustable via USB using either Windows or Android OS.The software allows the user to adjust the ride-height at each corner in 1mm increments independently. The software also has three locations where the user can store pre-configured suspension setups for quick changes.
Attention:
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
Features:
- Gains: Â +41 HP and +62 LB-FT.
- Long-lasting and driver reliability
- Significant gains in horsepower
- Increases the performance
- Significant gains torqueÂ
- Increasing the engine's rev limiter
- Incredible performance gains
Stock Performance:
- 577 HP @ 5,500rpm; 561 LB-FT @ 2,000-4,500rpm
- 605Â HP @ 5,500rpm;Â 626Â LB-FT @2,800-3,900rpm
Modified Performance:
- 638Â HP @ 5,500rpm;Â 695Â LB-FT @ 3,700rpm
- 523 awhp @ 5,500rpm; 570 awtq @ 3,700rpm
Vehicle Fitment:Â Â Â
- 2016Â Mercedes-Benz W166 GLE 63Â AMG SUVÂ
- 2017Â Mercedes-Benz W166 GLE 63Â AMG SUV
- 2018Â Mercedes-Benz W166 GLE 63Â AMG SUVÂ
- 2019 Mercedes-Benz W166 GLE 63 AMG SUVÂ
Note:
Images are for representation purpose only and may differ depending on application.
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Please inspect your order immediately. Damage must be reported within 48 hours. For freight/LTL items, if you cannot inspect the contents immediately, please write "Subject to Inspection" on the delivery receipt before signing.
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Flexible Returns:
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Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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To ensure every customer receives brand-new, untampered components, parts that have been installed, modified, or used are non-returnable. Custom builds, special orders, and wheel/tire packages are considered final sale.
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