Invidia HS15SWMDOCB High Flow Catted J-Pipe Downpipe Manual Transmission

The Invidia HS15SWMDOCB is a high-performance J-pipe and downpipe assembly engineered to dramatically improve exhaust flow and unlock additional power from turbocharged engines. Designed as a direct replacement for the restrictive factory exhaust components, this catted downpipe features larger 76mm (2.99-inch) diameter mandrel-bent piping with smooth transitions that allow the turbocharger to expel exhaust gases with significantly reduced restriction and turbulence.

Key Features:

• Premium 304 stainless steel construction for superior durability and corrosion resistance
• 76mm (2.99-inch) internal diameter piping for optimized exhaust flow
• Integrated 300 CPSI high-flow catalytic converter maintains emissions compliance while minimizing flow restriction
• Bottom-mounted catalytic converter design with divorced wastegate for reduced turbulence
• Twin oxygen sensor bungs including additional bung for aftermarket wideband sensor installation
• Polished stainless steel finish for a premium appearance
• Laser-cut cast steel flanges ensure leak-free, long-lasting reliability at high temperatures
• One-piece design for simplified installation
• Hardware included for bolt-on installation
• Compatible with Invidia cat-back exhaust systems or stock exhaust

This downpipe delivers measurable gains in horsepower and torque while significantly reducing turbo lag for improved throttle response. The high-flow catalytic converter ensures street legality in most areas while maintaining optimal performance. Note: Professional tuning is required after installation to optimize performance and maintain safe engine operation. This product is for manual transmission applications only and is not CARB-compliant for use in California or states adopting CARB standards.