RennTech Performance Stage 1 Turbo Upgrade For Mercedes-Benz C253 GLC 63 AMG - AutoTalent }
RennTech Performance Stage 1 Turbo Upgrade For Mercedes-Benz C253 GLC 63 AMG S - AutoTalent }
RennTech Performance Stage 1 Turbo Upgrade For Mercedes-Benz GLC 63 AMG S - AutoTalent }
RennTech Performance Stage 1 Turbo Upgrade For Mercedes-Benz GLC 63 AMG - AutoTalent }
RennTech Performance Stage 1 Turbo For Mercedes-Benz C253 GLC 63 AMG S - AutoTalent }
RennTech Performance Stage 1 Turbo For Mercedes-Benz C253 GLC 63 AMG - AutoTalent }
RennTech Performance Upgrade Stage 1 Turbo For Mercedes-Benz C253 GLC 63 AMG S - AutoTalent }
Description: The Mercedes 253 - GLC 63 AMG comes with the newest engine fully developed by AMG,...
Vendor: RennTech
SKU: PKG.09.177.1012
Product Type: Performance
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Subtotal: $13,540.00
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The Mercedes 253 - GLC 63 AMG comes with the newest engine fully developed by AMG, the company’s Affalterbach based performance division and long fabled engine builder. The result is nothing short of spectacular and the 4.0L V8 BiTurbo engine is an incredible platform to build performance upon.

RennTech lightweight forged billet turbo wheels 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 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 additional 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 end result is nothing short of spectacular with the RennTech turbo package creating up to 709 hp and 638 lb-ft.

More power isn’t the only performance benefit as our turbos spool quicker, offer a more responsive throttle and immediate power delivery thanks to a reduction in exhaust back pressure, rolling resistance, higher RPM's and a lighter rotating mass. In addition, our turbo upgrade kit functions with the OEM oil and coolant lines. This isn’t just an OEM turbo charger with machined internals; but a dramatically larger, more powerful turbocharger that blows away anything else on the market. The RennTech performance turbo upgrade is truly the ultimate upgrade for your GLC 63 AMG.


This Turbo Upgrade requires an additional core charge, which will be credited upon return of OEM turbo core to RennTech 

We have found the new M177 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory. Numbers will be dependent on conditions and fuel quality.

Power gains are calculated with stock numbers measured by RENNtech
To reach the maximum power level, RennTech downpipes, BOV adapter and high-flow air filters are required.

Our numbers will be dependend on conditions and fuel quality


  • The RennTech Stage I Turbo Upgrade comes with an RennTech ECU Upgrade and the RennTech Blow-Off Valve Adapters
  • Larger impeller (inlet) and turbine (exhaust) cartridge
  • Cartridge shaft is larger and stronger to support larger wheels
  • Entire cartridge is fine balanced as an assembly
  • Lightweight forged billet wheels
  • Less rolling resistance offers quicker spooling
  • Virtually no lag with impressive throttle response
  • Precision machined impeller and turbine housings
  • Up to 709 HP and 638 TQ @ crank

    Stock Performance:

    • 503 HP @ 5,500-6,250 rpm; 516 LB-FT @ 1,750-4,500 rpm
    • 545 HP @ 6,150 RPM; 550 LB-FT @ 3,700-4,700 RPM

    Modified Performance:

    • 709 HP @ 6,800rpm; 638 LB-FT @ 5,600rpm
    • 610 whp @ 6,600rpm; 549 wtq @ 3,350rpm

        Vehicle Fitment:    

        • 2016 Mercedes-Benz C253 GLC 63 AMG
        • 2017 Mercedes-Benz C253 GLC 63 AMG
        • 2018 Mercedes-Benz C253 GLC 63 AMG
        • 2019 Mercedes-Benz C253 GLC 63 AMG
        • 2020 Mercedes-Benz C253 GLC 63 AMG
        • 2016 Mercedes-Benz C253 GLC 63 AMG S
        • 2017 Mercedes-Benz C253 GLC 63 AMG S
        • 2018 Mercedes-Benz C253 GLC 63 AMG S
        • 2019 Mercedes-Benz C253 GLC 63 AMG S
        • 2020 Mercedes-Benz C253 GLC 63 AMG S


                                  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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