super fast shipping
G-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.
For custom fabricators and performance builders, the GESI G-Sport GEN2 400 CPSI Substrate offers the ultimate foundation for a high-performance catalytic converter. This substrate-only unit is specifically designed for those who need to integrate a high-flow, EPA-compliant core into a custom-built exhaust housing. With a 400 CPSI count, it provides excellent conversion efficiency while maintaining the high-flow characteristics necessary for engines pushing between 500 and 850 horsepower.
This substrate is the core component of the GESI G-Sport line, renowned for its ability to withstand extreme exhaust temperatures and vibration. By choosing the substrate-only option, you gain the flexibility to design your own inlet and outlet geometry to fit unique vehicle layouts. Whether you are fabricating a custom downpipe or a mid-pipe assembly, this component ensures your build remains compliant and efficient. Elevate your exhaust system engineering with professional-grade components from GGCRACING.
Other popular G-Sport products customers consider together:
G-Sport engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full G-Sport lineup with fast shipping and expert fitment support — order with confidence.
For custom fabricators and performance builders, the GESI G-Sport GEN2 400 CPSI Substrate offers the ultimate foundation for a high-performance catalytic converter. This substrate-only unit is specifically designed for those who need to integrate a high-flow, EPA-compliant core into a custom-built exhaust housing. With a 400 CPSI count, it provides excellent conversion efficiency while maintaining the high-flow characteristics necessary for engines pushing between 500 and 850 horsepower.
This substrate is the core component of the GESI G-Sport line, renowned for its ability to withstand extreme exhaust temperatures and vibration. By choosing the substrate-only option, you gain the flexibility to design your own inlet and outlet geometry to fit unique vehicle layouts. Whether you are fabricating a custom downpipe or a mid-pipe assembly, this component ensures your build remains compliant and efficient. Elevate your exhaust system engineering with professional-grade components from GGCRACING.
Other popular G-Sport products customers consider together:
