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ENGINEERING THE FUTURE OF PERFORMANCE ™
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AMG GT Downpipes
Purchase AMG GT Downpipes
  • SKU: 01-178-01390-0

    AMG GT Downpipes

  • Advertised gains are estimates of HP and Torque “at the engine” calculated from gains as measured on a Dynojet Dynamometer in ideal conditions and typically show the largest possible change.  Actual gains are dependent on the following: Learn More about Crank HP Vs Wheel HP

    Model – Manufacturers use the same engine in multiple model vehicles and often times they are in a different state of tune, for example: 2008 C63 and a 2008 CLK Black Series.  Both have the same engine, but the C63 has 451hp while the CLK63 has 500hp.  Naturally the C63 will show more gains as it starts at a lower level.

    Model Year – Similar to above, as time progresses, Manufacturers tend to slightly increase power output via software from one year to the next or offer “Performance Packages” with increased power.  The engines remain largely unaltered and as a result, final tuned output remains the same, while the gains are lower as the starting point is now higher.

    Fuel – Fuel quality is HIGHLY important with performance vehicles.  Low quality and/or low octane fuel will greatly impact engine output and potentially even engine health.  Top tier brand premium fuels should always be used to achieve the best results possible.

    Drivetrain – All wheel drive has higher drivetrain losses than rear wheel drive.  This results in lower numbers when testing on a chassis dyno.  Wheel/tire size and weight will also impact chassis dyno results

    Weather/Conditions – Temperature, humidity, altitude, and air density all impact engine performance.  Heat, high humidity, and thin air will all work towards reducing engine output

    Engine Health – Higher miles tends to result in increased build up and lower compression which can and will impact engine output.  Properly maintained engines will have better performance than abused or neglected engines.

    Supporting modifications – The highest power levels require supporting modifications.  Depending on the engine, this could mean forged internals, built transmission, upgraded fuel system, 110+ octane race fuel, etc.

  • $3,299.00 $3,299.00

  • Prop 65 warning
    Warning

    This product can expose you to chemicals including carbon black, silica - crystalline, formaldehyde, and lead which are known to the State of California to cause cancer, and lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Weistec Horsepower 648
Weistec Torque 730
Manufacturer Weistec
Street legal in all the US States No
Engine Family M178
Stock Horsepower 456
See more
year make model trim engine
2020 Mercedes-Benz AMG GT S Coupe (C190) Twin Turbo 4L V8 (M178)
2019 Mercedes-Benz AMG GT S Coupe (C190) Twin Turbo 4L V8 (M178)
2018 Mercedes-Benz AMG GT S Coupe (C190) Twin Turbo 4L V8 (M178)
2017 Mercedes-Benz AMG GT S Coupe (C190) Twin Turbo 4L V8 (M178)
2016 Mercedes-Benz AMG GT S Coupe (C190) Twin Turbo 4L V8 (M178)
2015 Mercedes-Benz AMG GT S Coupe (C190) Twin Turbo 4L V8 (M178)
See more

Product Description



[ Expect delivery times of 8 weeks ] [ Needs ECU Tuning to run properly ]


The AMG GT is poised to set the bar for what should be expected from a luxury sports car.  Weistec Engineering offers Downpipes for the AMG GT and the AMG GT-S.  Engineered and designed with the most sophisticated Computer Aided Design tools, excellent fitment and the highest performance possible are guaranteed. Each Downpipe and Midpipe features 3 inch diameter piping and laser cut precision flanges to mate with factory mounting points, giving this system a perfect fit.

Weistec AMG GT-S ECU | Downpipe and Midpipe Power

 

Downpipes come standard with internal Ceramic coating to keep heat within the piping, helping improve exhaust velocity while also reducing engine bay temperatures.

Our AMG GT and AMG GT-S Midpipes bolt to the Downpipes using a low profile V-Band flange, and terminate using OEM coupling to mate perfectly to the factory cat back exhaust.

Key Features:

  • 100% mandrel bent and TIG welded

  • Constructed of low carbon 304 Stainless Steel

  • Bolt-on installation

  • Improved exhaust note

  • Improved exhaust flow

  • Increased HP and Torque, especially when coupled with our M178 ECU Upgrade

  • Compatible with future products