Catalysts

The developed HJS motorsport catalyst muffler system provides many advantages. The compact construction permits the installation also in vehicles with little ground clearance. The combination of muffler and catalyst effects a clear weight reduction. The exchangeable catalyst unit guarantees a cost-effective replacement.

HJS offers a comprehensive range of approved tuning downpipes. The vehicle-specific stainless steel catalysts can be combined with standard-production and tuning exhaust systems from many different manufacturers.

HJS’s 200 cpsi tuning catalysts optimise the car’s performance while significantly improving the sound. Registration in the vehicle papers is not necessary.