RennTech Performance Stage 1 Turbo Upgrade For Mercedes-Benz C253 GLC 63 AMG, S

VENDOR: RennTech

SKU: PKG.09.177.1012

All orders will include an AutoTalent window decal


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.