DT-1 air filters are designed and made using the latest technologies to ensure not only the maximum airflow through the engine but the best protection for engines and their parts, too. Manufactured in Belgium and America using the highest quality materials, DT-1 filters come pre-oiled or as standard parts ready for fitting to your motorcycle to get you back out on the road or track with an upgraded air filter in a matter of minutes. The company itself has been making high performance air filters for all major makes and models of motorcycles for more than 30 years with DT-1 filters used by professionals and race winners around the world. That experience and racing pedigree has helped them to build not just a reputation of quality, but reliability, too. Their super-seal base creates the cleanest seal on the market keeping harmful materials out of the system and the engine running smoothly, cleanly and to the highest standards.