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Weistec M113K Exhaust System Mercedes-Benz CL55|CLS55|E55|G55|S55|SL55 AMG 02-12



Model #01-113-00989-2

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This product is for Racing Competition only and is not legal for use in highway or street vehicles or other non-racing competition off-road vehicles.

Purchasing this product requires you to sign our Vehicle Compliance Waiver here.

The biggest restriction to making high power with the M113K engine is the limited flow of the factory exhaust manifolds. Whether you want to make as much power as possible with the AMG Kompressor, or are looking to run the Weistec M113K Supercharger Systems, it will be necessary to upgrade to long tube headers.

To make for the best power possible, the headers feature 2" primaries that allow for as much flow out of the cylinder head as possible. The large primaries and proper O2 sensor placement of these headers work extremely well when coupled with Weistec Software and Supercharger System, resulting in the best performance and drivability out of all the headers that are currently on the market.

Packaged with the headers are 3" Stainless Steel Midpipes, and a 3" Stainless Steel X Pipe resulting in a bolt on installation that retains the factory resonator and mufflers. When paired with Weistec ECU Upgrade and Weistec Modular Crank Pulley, power gains are typically 120+hp at the wheels.


  • All stainless construction
  • Tig welded
  • 2" primaries
  • Midpipes and X Pipe
  • Proper O2 sensor placement
  • Exhaust manifold gaskets included
  • Up to 120+whp gains
  • Bolt in, no cutting
  • Weistec Horsepower: 575 (Stock - 469)
  • Weistec Torque: 582 (Stock - 516)
  • Engine: M113K
  • Mercedes-Benz W215 CL55 AMG 03-06
  • Mercedes-Benz W219 CLS55 AMG 04-06
  • Mercedes-Benz W211 E55 AMG 03-06
  • Mercedes-Benz W463 G55 AMG 06-12
  • Mercedes-Benz W220 S55 AMG 02-06
  • Mercedes-Benz R230 SL55 AMG 03-08
  • Actual system may be different than the image(s) depending on chassis.

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Vehicle Engine Notes
Mercedes-Benz CL55 AMG

Mercedes-Benz CLS55 AMG

Mercedes-Benz E55 AMG

Mercedes-Benz G55 AMG

Mercedes-Benz S55 AMG

Mercedes-Benz SL55 AMG

Weistec Limited Warranty

1. Warranty on Weistec Turbocharger Systems, Supercharger Systems, Exhaust Systems and Engine Accessories

12 month Weistec Limited Warranty. Valid 12 months from sales date with valid registration.The following exclusions apply to all Weistec Limited Warranties.

Weistec's limited warranties do not cover any of the following damages or items:
  • Damages to and/or failure of any non-Weistec component or equipment on a vehicle including, but not limited to, the engine, electrical system, transmission and differentials.
  • Damage caused by "Acts of God", normal wear and tear, or damage to a vehicle or engine caused by, tuning by others, collision and/or engine failure.
  • Any costs incurred for towing or downtime of the vehicle.
  • Any rental vehicle costs
  • Any labor costs to diagnose problems or to remove or replace the Weistec products; or any damage caused by the use of another company's product.
  • Any shipping costs.

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