RennTech R3 Performance Diverter Valve For Mercedes-Benz W166 GLE 63 AMG SUV - AutoTalent }
RennTech R3 Performance Ecu Upgrade For Mercedes-Benz W166 GLE 63 AMG SUV - AutoTalent }
RennTech R3 Performance Diverter For Mercedes-Benz W166 GLE 63 AMG SUV - AutoTalent }
RennTech R3 Performance Air Filter For Mercedes-Benz W166 GLE 63 AMG SUV - AutoTalent }
RennTech R3 Performance Turbo Upgrade For Mercedes-Benz W166 GLE 63 AMG SUV - AutoTalent }
RennTech R3 Performance Turbo Upgrade For Mercedes-Benz GLE 63 AMG SUV - AutoTalent }
Description: The RennTech R3 Performance Package is the evolution stage of the R2 Pkg. Included in the R3...
Vendor: RennTech
Product Type: Performance
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The RennTech R3 Performance Package is the evolution stage of the R2 Pkg. Included in the R3 Package are all upgrades from the R2 Pkg, ECU Upgrade, Diverter Valve, Air Filters, Carbon Fiber Air Box Kit and Stainless Steel Sport Mufflers, as well as upgraded Turbocharger. With the upgraded Turbochargers included in the R3 Performance upgrade, RennTech is able to add up to 155 HP and 239 LB-FT to the 5.5L V8 BiTurbo engine (compared to RENNtech rated stock performance). The addition of the upgraded diverter valve helps the engine to handle boost spikes in high boost pressure applications better. A surplus of boost will be released to the atmosphere and the turbocharger can be supplied with air quicker after the shifting process.

This helps to eliminate the 'Turbo Lag'. The RennTech 4-piece air box kit is made out of the highest quality pre-peg carbon fiber. The kit comes complete with flow optimized turbo tubes to increase the volume of incoming airflow. Our Stainless Steel Sport Mufflers are hand crafted and 100% desgined and produced at the Stuart, Florida Headquarters. Made out of T-304 stainless steel (SS) with 2 3/4" tubing, they offer lighter weight and improve performance by reducing back pressure, increasing exhaust gas flow and cylinder scavenging.

RENNtech upgraded turbochargers are equiped with lightweight forged billet wheels and feature a dramatically larger than stock impeller (inlet side) and an increase in the turbine trim (exhaust side). This combination of high quality, light weight components coupled with less rolling resistance from the ball bearing cartridge compensates for turbo lag despite being a functionally larger turbo. The cartridge supporting shaft is also both larger and stronger designed to handle the larger wheels and added power. This entire cartridge is then fine balanced as a complete assembly to compensate for these increases. The impeller and turbine housings are then precision CNC machined and flow tested in-house to fit the larger internal cartridge

The R3 performance package increases performance to 760 hp and 865 lb-ft at the crank, without sacrificing daily driver comfort or reliability and offer huge gains across the entire RPM range. We highly recommend higher flowing direct injection (high pressure) fuel pumps, to assure continues fuel flow in high performance applications. Due to increased power and boost levels, 93 Octane or higher gasoline has to be used with R2 upgraded RENNtech vehicles to avoid damage to the engine. States known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race Fuel options.


The R3 Pkg requires an additional core charge, which will be credited upon return of the OEM tubo cores and OEM turbo pipes to RennTech. The pipes have to be returned in good condition. Deep scratches and dents will void the credit.

The Carbon Fiber air box for the M157 requires modification to the OEM engine cover.

Installation of higher flowing performance direct injection (high pressure) fuel pumps is highly recommend.

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 an 18% Drivetrain loss on SUVs.

Our numbers will be depending on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Package.

States known for poor fuel quality have to be supplied with a lower power setup


  • Gains up to +155HP; +239LB-FT
  • Long-lasting and driver reliability
  • Significant gains in horsepower
  • Increases the performance
  • Significant gains torque 
  • Increasing the engine's rev limiter
  • Incredible performance gains
  • RennTech ECU Upgrade
  • RennTech 3rd Gen. Diverter Valve
  • BMC High-Flow Air Filters
  • RennTech Turbocharger Upgrade

    Stock Performance:

    • 577 HP @ 5,500rpm; 561 LB-FT @ 2,000-4,500rpm
    • 605 HP @ 5,500rpm; 626 LB-FT @2,800-3,900rpm

    Modified Performance:

    • 760 HP @ 5,500rpm; 865 LB-FT @ 3,700rpm
    • 623 awhp @ 5,500rpm; 709 awtq @ 3,700rpm

    Vehicle Fitment:    

    • 2016 Mercedes-Benz W166 GLE 63 AMG SUV
    • 2017 Mercedes-Benz W166 GLE 63 AMG SUV
    • 2018 Mercedes-Benz W166 GLE 63 AMG SUV
    • 2019 Mercedes-Benz W166 GLE 63 AMG SUV


                              Images are for representation purpose only and may differ depending on application.

                                If you have any fitment questions, please feel free to reach out to our team via the contact methods below. If you are contacting us for any order status updates, please give us a call, or email us. We are a lean operation bringing you the best shopping experience possible. We are working on your orders as quickly as we can. We thank you for your patience.

                                Please reach out to us at (310) 231-0292 for sales inquiries if you are in the United States, Canada, Mexico.
                                For more in-depth product questions, fitment questions, product inquiries please email our performance specialists at
                                All other inquiries:
                                Please direct your inquiries to the chat functionality on our website.

                                Returns Policy

                                If a product is ordered and not wanted, the UNUSED item can be returned for a 25% restocking fee unless otherwise specified. In some cases, we may offer the ability to return the item to us for a lesser restocking fee and then keep the balance as a store credit. To return an item, it must be in brand new condition with original packaging.

                                We cannot accept a return on special ordered or custom items.

                                Shipping is non refundable in either direction unless approved by AutoTalent. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the AutoTalent facility are shipped via FedEx, USPS, or USPS. Some packages shipped from the manufacturer may or may not require signatures for package release.

                                Special Order Items

                                Some items may be special order specifically for the customer’s vehicle. These items generally require a deposit or paid in full. Once this deposit amount is notified to the customer and they agree to order the special order item, the deposit becomes non-refundable. These special order items cannot be returned or resold. Cancellations are not allowed on special order parts.

                                AutoTalent DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return. We will not cover any expenses related to the product or installation, and you may be required to purchase a replacement.

                                ** All cancellations that are requested that are NOT due to items not being in stock or delayed by the manufacturer are subject to a 5% processing fee. When you place an order with us we pay credit card fees that are NOT returned back to us. We will absorb these fees if we do not have the item in stock OR if you agree to the original ETA and that ETA is NOT met. If you decide to cancel for any other reason you will not receive this 5% fee back


                                We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

                                When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

                                Please also note that the shipping rates for many items we sell are weight-based.


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