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4.0 BiTurbo M177 Custom Downpipe Mercedes GLC63 AMG GLC63s


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Custom Stainless Steel De-Cat Downpipe Kit for Mercedes GLC63 AMG, GLC63s AMG , working with M177 DE 40 LA engine with stock power 476-510HP, is the direct P&P replacement for the stock Downpipe.

It fits LHD cars only.

Every part of this racing focused downpipe replacement is produced using CNC technology and is fully made out of Acid-Resistant Steel. It doesn’t include the Catalytic Converter (CAT) and thereby significantly reduces the back pressure which leads to faster spool, an increase of power and more aggressive exhaust sound. The Sports Cat version also offers huge flow improvement over the stock catalyst, which is the cause of very significant flow resistance. The bigger the diameter of the downpipe, the easier and quicker the turbocharger is able to lead off the exhaust gas. The design of the GotTuned downpipe is optimized for minimization of variances in cross section area in order to get smooth exhaust gas flow and top performance.
Because a downpipe connects a turbocharger and the catback exhaust, its upgrade is often required for the upgraded turbo to unleash its full power. This upgrade ensures your turbo’s potential is not wasted, it is also a great choice cost-wise!

Most important features

1. The downpipe parts are CNC produced, ensuring precise, high quality elements.
2. The 3-inch (76mm) pipe diameter.
3. Removed Catalytic Converter, there is also an option to put race cat (100/200CPSI) for this downpipe!
4. It is made fully out of Acid-Resistant Steel to ensure long life despite being exposed to toxic exhaust gases.
5. There are 2 sockets for lambda sensors on the assembly.
6. The shape and mounting points fit with the original car parts, no additional work is needed!
7. Clean, strong and attractive welds, inside and out!
8. 100% Plug and Play
9. Limited 2 years warranty
10. ECU tune is necessary to avoid the Check Engine Light.

Performance advantages

1. Lowers exhaust temperature, so the charger and the exhaust manifold are more protected.
2. The highest levels of performance and greater reliability under constant high load conditions.
3. Allows for smooth flow of the exhaust gases, giving your engine extra power, as well as sharper throttle response!
4. Lighter than OEM.

Compatible car models

Mercedes GLC63 AMG X253 476HP
Mercedes GLC63S AMG X253 510HP
Mercedes GLC63 AMG C253 476HP
Mercedes GLC63S AMG C253 510HP

The upgraded Plug&Play KKK turbocharger for Mercedes GLC63 AMG and GLC63s AMG is available as follows:

M177 Upgrade Turbo Aston Martin DB11, Vantage, Mercedes C63 AMG, C63S AMG, AMG GT, AMG GT S, E63 AMG, G500, GLC63 AMG

ECU tune is necessary to avoid the Check Engine Light. We need usually ~ 14 working days to perform and send this KIT.

Additional information


without, 100 CPSI, 200 CPSI


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