

The unique experience and the permanent development guarantee products of high quality and competitiveness.
In cooperation with the DMSB and the FIA HJS has developed a concept which allows to offer the right catalytic converter for all possible application cases in motor sport. For the technical regulations of the FORMULAR 3, the International and national Touring Car series and the WORLD RALLYE CARS and KIT CARS HJS has developed specific catalytic converters which also have a FIA homologation.
For all the other technical regulations there is the HJS motor sport-catalytic converter programme which follows the cubic capacity classes of the competition vehicles.
Through this it is guaranteed that for all current automobile racing series the right catalytic converters are available.

| Metal carrier | Metal carrier |
| 105 x 74,5 mm with | 105 x 74,5 mm with |
| 100 cpsi SM-winding | 400 cpsi S-winding |
| (motor sport) | (Serie) |