Designed to dominate any type of terrain, Dayco HPX belts deliver unapparelled response. Constructed with extra strong P-aramid cord reinforcement and engineered fiber loaded neoprene compounding this belt delivered the "muscle" and durability demanded by today's high performance engines and high performance enthusiasts. tested under severe field conditions the Dayco HPX belt has been proven to run cooler and to provide longer belt like than competitive belts.