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SLS Long Tube Headers
Purchase SLS Long Tube Headers
  • SKU: 01-159-00871-2

    SLS Long Tube Headers

  • 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.

  • $7,999.00 $7,999.00

  • Prop 65 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

Weistec Horsepower 706
Weistec Torque 545
Manufacturer Weistec
Street legal in all the US States No
Engine Family M159
Stock Horsepower 563
See more
year make model trim engine
2015 Mercedes-Benz SLS AMG Roadster (R197) NA 6.2L V8 (M159)
2014 Mercedes-Benz SLS AMG Roadster (R197) NA 6.2L V8 (M159)
2013 Mercedes-Benz SLS AMG Roadster (R197) NA 6.2L V8 (M159)
2012 Mercedes-Benz SLS AMG Roadster (R197) NA 6.2L V8 (M159)
2011 Mercedes-Benz SLS AMG Roadster (R197) NA 6.2L V8 (M159)
2015 Mercedes-Benz SLS AMG GT Roadster (R197) NA 6.2L V8 (M159)
See more

Product Description

+79 Wheel Horsepower, +58 Wheel Torque

The Weistec SLS Headers and Midpipes are designed for optimal performance whether your SLS is naturally aspirated, or Weistec Supercharged. The headers feature all Stainless Steel construction and include 3 inch Stainless Steel connector pipes that bolt up to the headers using high quality V-Band clamps while the other end of the connector pipes bolt up to the exhaust using the factory ball and slip fit joints. Any aftermarket catback exhaust that is designed to bolt up to the factory exhaust manifolds and catalytic converters will also work with our SLS Headers.

All models of SLS have very sensitive oxygen sensors. The Weistec SLS Headers feature a 4 to 1 design with 2 inch primaries merging into a 3 inch collector. This design allows for the primary oxygen sensor to be installed in the collector so that is can take readings from all the cylinders and still not be too far down the exhaust path. In our experience, some SLS’s exhibit idle issues and/or inconsistent power delivery as a result of delayed oxygen sensor readings. Our design keeps the oxygen sensor as close to the original position as possible to help ensure consistent readings.

600 WHP, SLS Black Series Dyno, Weistec Tune and Headers on 91 Octane!


SLS Black Series: Weistec Tune and Long Tube Headers

  • +79 Wheel Horsepower

  • +58 Wheel Torque

Key Features:

  • Stainless Steel Construction

  • 4 to 1 Design

  • Connector Pipes Included

  • V-Band Connection Between Headers and Connector Pipes

  • Bolt On Installation

  • 15 Lbs Weight Savings

  • 60-80hp Gain

  • OEM Exhaust Manifold Gaskets Included