Transform your 2017-2024 Mercedes-AMG G500 / G550 SUV W463A with Redstar performance exhaust downpipes engineered specifically for the M176 4.0 twin-turbo V8. This bolt-on upgrade replaces the factory downpipe section to free exhaust flow and support higher performance. Designed to integrate cleanly with OEM mounting points, it delivers a precision fit for daily driving and spirited use alike.

Reducing backpressure immediately improves turbo response, giving faster spool and sharper throttle feel along with meaningful gains in power delivery. The optional OEM-style heat shielding uses motorsport-inspired construction to cut radiant exhaust heat by up to 80%, helping protect surrounding components and supporting turbo longevity, while the system adds a deeper, more characterful exhaust note.

Built to last, each system is crafted from 2.0mm wall 304 stainless steel, 100% TIG welded and back purged, and finished with OEM-spec flanges and brackets. Specify premium HJS 200cpsi or GESI GEN2 400cpsi converter options to suit your goals. Choose Redstar for a G-Class downpipe solution that blends engineering rigour, durability, and the Redstar sound.

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

• Faster turbo spool with crisper throttle response
• Noticeable power and torque gains from reduced backpressure
• Lower engine bay temperatures for improved component protection and turbo longevity
• Deeper, more engaging exhaust tone
• True bolt-on fitment for straightforward installation

Technical Specifications

• 2.0mm wall 304 stainless steel construction
• 100% TIG welded and back purged
• OEM-spec flanges
• All brackets and mounts as on OEM unit

Notes

• EURO 6 compliant when equipped with HJS HD 200cpsi catalytic converters

Fitments

• 2017-2024 Mercedes-AMG G500 / G550 SUV W463A M176 4.0 twin-turbo