HJS Motorsport Exhaust Systems
HJS develops, designs and produces complex motorsport exhaust systems for vehicle manufacturers, works teams and hobby tuners.
All HJS Motorsport exhaust systems with catalyst are DMSB-approved. DMSB approval is 100% recognised by the FIA.
HJS has developed an exhaust system for Mitsubishi EVO VII up to X including DMSB homologated PE catalytic converters.find out more
HJS has developed a complete exhaust system for the Citroen DS R3 including DMSB homologated PE catalytic converters.find out more