Originally developed for the demanding requirements in automotive racing K&N's range of oil filters provide the ultimate in filtration, strength and durability.With years of product development and technicians that understand the requirements demanded from modern oil filtration (several technicians are sportsman class drag racers!) K&N has produced an oil filter that has corrected the headaches most people have experienced at some point whilst changing an oil filter.Their durable design incorporates many features that are over and above the requirements of OEM specifications, such features include a simple 17mm nut welded to the top of the canister to allow easy removal, so no need for that illusive oil filter tool or resorting to impaling it with a screwdriver to remove, the nut is also pre-drilled allowing the ability to safety wire the filter for race use*. Their use of a thicker canister wall provides extra strength and durability, reducing the risk of damage from loose stones, etc