HJS Emission Technology https://www.hjs-motorsport.de/products/motorsport.html +49 2373 9870 Dieselweg 12, Menden, Sauerland, 58706, Germany HJS Emission Technology https://www.hjs-motorsport.de/products/motorsport.html +49 2373 9870 Dieselweg 12, Menden, Sauerland, 58706, Germany For more than 30 years, we have been engaged in the development, production and marketing of modular systems for reducing pollutant emissions. HJS's market presence is characterised by innovative technologies and products, excellent quality and a strong customer focus. At the same time, the company is making an important contribution to protecting mankind and the environment. Contact Us YouTube Contact Us YouTube Latest News Documents to download HJS Motorsport Cup-Catalysts HJS Motorsport PE-Catalysts HJS Motorsport UL-Catalytic Converters HJS motorsport catalyst muffler system Documents to download DP Motorsport 2021(.pdf, 1.19 MB) - 14 download(s) Delivery Programme Tuning 2021(.pdf, 2.67 MB) - 60 download(s)