HJS Tuning
Catalysts & ECE Downpipes

Our catalysts with a cell count of 200/300 cpsi were developed on the basis of motorsport catalysts. The product portfolio ranges from downpipes with ECE R103 approval to universal catalysts.

ECE Downpipes

HJS’s ECE-approved downpipes can be combined with standard-production and tuning exhaust systems from many different manufacturers.

Universal catalysts

HJS’s universal catalysts have been tested for Euro 1 to Euro 6 vehicles. You will have no problems with your EOBD or MOT inspection.


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