Tuning Products

HJS Tuning Catalysts with 200/300cpsi

HJS tuning catalysts with 200/300 cpsi have been developed on the basis of our motorsport catalysts. The product range extends from downpipes with ECE R103 approval to universal catalysts.

HJS has the right product for every application.

ECE downpipes

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

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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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