Transform your McLaren 750S 4.0L twin-turbocharged V8 with Redstar ExhaustÕs Long Tube Race-X muffler-replacement performance exhaust. Purpose-built for the 750S, this system replaces the factory muffler section to unlock a more assertive character while remaining fully compatible with all OEM components. It integrates cleanly with Redstar Downpipes for a cohesive upgrade path. 3.5 inch systems require matching 3.5 inch downpipes, and the kit reuses the OE tip with a 3D printed tip available on request.

Engineered to deliver a louder, more aggressive note with a balanced sound profile, the Long Tube Race-X design focuses on maximising flow and reducing backpressure for sharper throttle response and meaningful power gains. Pairing it with Redstar Downpipes further amplifies performance benefits. Redstar heat shielding options are available, reducing radiant exhaust surface temperatures by up to 70% to help control under bonnet heat.

Built for durability and seamless fitment, each system uses high quality 2.0 mm wall 304 stainless steel, is 100% TIG welded and back purged, and features OEM-spec flanges. The result is a true bolt-on upgrade that retains factory integration while elevating sound and performance - the Redstar way.

Available Options

• Titanium - The benchmark in lightweight construction, titanium introduces an unmistakably exotic timbre to the exhaust note while shedding weight. Its natural resonance delivers an authentic, engaging soundtrack that suits serious high-performance driving.
• Inconel 625 - For a high-pitched, ripping supercar character, Inconel 625 advances sound quality while cutting weight versus stainless steel. It is also engineered for remarkable longevity, rated at approximately 100 times the durability of titanium for ultimate endurance.
• 3.5 inch Exhaust vs standard 3 inch - An upsized 3.5 inch configuration is available in place of the standard 3 inch system for those seeking a larger diameter pathway.
• Double-layer heat shielding - A multi-layer thermal solution designed to protect nearby components, wiring, and hoses from radiant heat from the downpipes. The integrated insulation can reduce surface temperatures by up to 70%, outperforming typical wraps or coatings. This is important for safety and for lowering under bonnet temperatures that can influence performance. Highly recommended for catted downpipes.

Key Performance Benefits

• Noticeable power gains when freeing exhaust flow
• Faster spool-up and crisper throttle response
• Reduced under bonnet temperatures for more consistent performance
• Enhanced, more aggressive exhaust tone with a balanced sound profile
• Can contribute to extending turbocharger service life
• 100% bolt-on installation for straightforward fitment

Technical Specifications

• Highest quality 2.0 mm wall 304 stainless steel construction
• 100% TIG welded and back purged for structural integrity and clean airflow
• OEM-spec flanges for reliable sealing and fit
• All brackets and mounts replicate the OEM unit for precise alignment
• OEM-like ceramic wool heat shielding integrated into the assembly
• Long Tube Race-X muffler-replacement architecture
• Offered in standard 3 inch with optional 3.5 inch configuration

Notes

• 3.5 inch configuration requires matching 3.5 inch Redstar Downpipes
• Reuses OE tip - 3D printed tip available on request
• Fully compatible with factory components and designed to pair seamlessly with Redstar Downpipes

Fitments

• 2024+ McLaren 750S 4.0L twin-turbocharged V8