Transform your 2019-2024 McLaren GT M840T and 2024+ McLaren GTS M840T with Redstar performance exhaust downpipes engineered for the 4.0L V8 twin-turbo. Designed to target the post-turbo downpipe section, this upgrade unlocks the flow your M840T deserves, pairing 3.5 inch piping with robust 2.0 mm 304 stainless steel construction to deliver a true performance step-change for both GT and GTS models.

Expect sharper throttle response, faster turbo spool, and substantial power gains as backpressure is reduced. With Redstar's OEM-style heat shielding option, radiant exhaust heat is cut by up to 80%, helping protect surrounding components and supporting turbo longevity. High-flow catalyst options include HJS HD 200cpsi and GESI GEN2 400cpsi, each chosen to provide freer breathing compared with factory parts while maintaining refined drivability.

Crafted with an engineering-first approach and motorsport-inspired thermal management, Redstar downpipes add a richer, more assertive exhaust tone without compromising build quality. For those seeking an even lighter assembly and a more pronounced exotic sound, Inconel 625 construction is available. Elevate your McLaren GT or GTS with Redstar downpipes - the performance exhaust upgrade that blends precision, durability, and the unmistakable 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.
• Inconel 625: Lighter and stronger than stainless steel, with a more pronounced exotic sound.

Key Performance Benefits

• Significant power and torque gains
• Faster turbo spool and sharper throttle response
• Reduced engine bay temperatures
• Enhanced, more aggressive exhaust tone
• Supports long-term turbocharger longevity

Technical Specifications

• 3.5 inch piping
• 2.0 mm wall thickness 304 stainless steel construction

Notes

• EURO 6 compliant when using HJS HD 200cpsi catalytic converters

Fitments

• 2019-2024 McLaren GT M840T
• 2024+ Mclaren GTS M840T