Unleash the unmistakable AMG soundtrack and performance with Redstar Exhaust C63 W205 Downpipes, purpose-built for the 2014-2019 pre-facelift Mercedes C63 AMG and C63S Coupe, Sedan, Convertible, and Wagon equipped with the M177 4.0 twin-turbo engine. Designed to replace the factory downpipes, this Redstar performance exhaust upgrade targets flow where it matters most on the W205 platform.

By cutting backpressure, Redstar downpipes sharpen throttle response, encourage faster turbo spool, and unlock significant performance gains while adding a deeper V8 note punctuated by aggressive burbles and crackles. Optional OEM-style heat shielding reduces radiant exhaust heat by up to 80%, helping keep under-bonnet temperatures in check and supporting long-term component protection.

Engineered for durability and precise fitment, each assembly is manufactured from 2 mm wall 304L stainless steel, 100% TIG welded and back purged, and finished with OEM-spec flanges for a true bolt-on installation. Tailor the system to your goals with high-flow catalyst options including HJS 200 cpsi or GESI GEN2 400 cpsi. With RedstarÕs focus on quality, sound, and seamless integration, these downpipes deliver a compelling performance exhaust solution for your Mercedes-AMG C63 and C63S.

Available Options

• HJS HD 200cpsi Catalytic Converters: Engineered in Germany and trusted worldwide, the HJS 200cpsi ultra high-performance cats are rated for over 1000hp. Renowned for exceptional flow, durability, and consistent quality, these converters set the benchmark for high-output applications. Ideal for drivers demanding maximum performance without compromise.
• GESI GEN2 400cpsi Catalytic Converters: The latest GEN2 series from GESI is rated to support up to 1000hp while offering smoother exhaust flow and improved efficiency compared with factory units. Featuring advanced emissions technology for optimal catalyst function at high flow rates. A strong choice for those seeking significant performance gains with refined operation.
• OEM-Style Heat Shielding: Redstar's signature thermal management system reduces radiant exhaust heat by up to 80%. Developed with motorsport-inspired materials and construction, it uses a multi-layer design of ceramic insulation and embossed stainless steel foil. Unlike wraps or coatings that degrade quickly, Redstar shielding delivers long-term durability and consistent protection for engine bay components.

Key Performance Benefits

• Noticeable power and torque gains
• Sharper throttle response and quicker turbo spool
• Helps extend turbocharger service life
• Reduced under-bonnet temperatures
• Deeper, more characterful V8 sound
• True bolt-on installation for straightforward fitment

Technical Specifications

• 2 mm wall 304L stainless steel construction
• 100% TIG welded and back purged
• OEM-spec flanges
• Includes brackets and mounts as per OEM design

Fitments

• 2014-2019 (pre-facelift) Mercedes C63 AMG / C63S Coupe/Sedan/Convertible/Wagon M177 4.0 twin-turbo engine