Enhance exhaust performance, sound, and throttle response on your BMW G8X M3 or M4 with the Supersprint Non-Resonated J-Pipe. Engineered as a high-flow center section upgrade, this precision-built J-Pipe replaces the factory center pipe and secondary catalytic converter to deliver improved exhaust flow, increased power potential, and a deeper, more aggressive exhaust note.

Manufactured from premium T304 stainless steel, the Supersprint J-Pipe features a 100mm mandrel-bent cross section designed to reduce backpressure while maintaining excellent fitment and long-term durability. The non-resonated design allows the S58 engine to breathe more freely, resulting in a sharper, race-inspired tone without unnecessary restriction.

This J-Pipe is designed to integrate seamlessly with the OEM primary catalytic converters, allowing for a straightforward installation while retaining factory mounting points and alignment. Every Supersprint exhaust component is hand-crafted in Italy, reflecting decades of motorsport-driven engineering and world-class manufacturing standards.

Founded in 1955, Supersprint is recognized globally for producing some of the highest-quality performance exhaust systems available. Rather than focusing solely on sound, Supersprint engineers complete exhaust solutions that balance flow efficiency, power gains, acoustics, and fitment. The result is an exhaust upgrade that delivers measurable performance improvements while preserving refinement and reliability.

Product Details:

• T304 stainless steel construction
• Non-resonated J-Pipe center section
• 100mm mandrel-bent J-Pipe design
• Deletes the secondary catalytic converter
• Compatible with OEM primary catalytic converters
• TIG welded construction
• Hand-built in Italy
• Alternative to Supersprint 527702

EMISSIONS NOTICE
View Emissions Notice

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.