Our oil catch cans are made of the highest quality aluminum construction available on the market and topped with a k&n flat offroad filter. Fully tig welded for a desired appearance that any enthusiast would admire. Oil catch cans are a highly needed part of any high revving turbo setup. These motors produce a decent amount of blow-by. Which is oil vapors and contaminants that build up in the intake system and throttle body. The oil catch can separates oil from the dirty air and collects all the excess waste in the catch can. This similar design has been used in the automotive performance world for years!