Buy Now - Pay Later with Affirm
Learn More
  See more parts for your Mercedes-Benz C63 AMG

Weistec M156 Exhaust System Mercedes-Benz C63|CLK63|CLS63|E63|ML63|SL63 AMG 07-14



Model #01-156-00956-3

Shopper Award

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 M156 engine is the limited flow of the factory exhaust manifolds. Whether you want to make as much power as possible naturally aspirated, or are looking to run Weistec's M156 Stage 2 or a Stage 3 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 Stage 2 and Stage 3 supercharger systems 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 High Flow Air Filters, power gains are typically 90+hp at the wheels for naturally aspirated vehicles. These headers are required for Stage 2, and Stage 3 Supercharger Systems to achieve advertised power.

  • All stainless construction
  • Tig welded
  • 2" primaries
  • Midpipes and X Pipe
  • Proper O2 sensor placement
  • Exhaust manifold gaskets included
  • Signifigant horsepower gains
  • Bolt in, no cutting
  • Weistec Horsepower: 571 (Stock - 451)
  • Weistec Torque: 530 (Stock - 443)
  • Engine: M156
  • Mercedes-Benz W204 C63 AMG 08-14
  • Mercedes-Benz W204 C63 AMG Black Series 13-14
  • Mercedes-Benz W209 CLK63 AMG Black Series 2008
  • Mercedes-Benz W219 CLS63 AMG 07-10
  • Mercedes-Benz W211 E63 AMG 07-09
  • Mercedes-Benz W212 E63 AMG 10-11
  • Mercedes-Benz W164 ML63 AMG 07-11
  • Mercedes-Benz R230 SL63 AMG 08-11
  • Actual system may be different than the image(s) depending on chassis.
Proposition 65

/!\ warningWARNING: Cancer and Reproductive Harm

Vehicle Engine Notes
Mercedes-Benz C63 AMG

Mercedes-Benz CLK63 AMG

Mercedes-Benz CLS63 AMG

Mercedes-Benz E63 AMG

Mercedes-Benz ML63 AMG

Mercedes-Benz SL63 AMG

Based out of Orange County California, Weistec Engineering is an industry leader in research, development, and design. Weistec has grown to provide customers with the highest level of satisfaction and value through relentless testing and continuous improvements in product and performance.

Specializing in computer aided design, and vehicle calibration, Weistec has the ability to manufacture quality products that are able to withstand even the most rigorous testing. From OEM vehicle manufacturers to the aftermarket performance enthusiast we aim to deliver innovative solutions that address a client’s needs.

Check out these other great products