Our billet oil filter housing was first on the market back in 1997. Designed and machined in house at VAC it was a revolutionary piece that allowed people to filter 100% of their oil as well as run oil cooler and dry sump kits. Since then some companies have copied this piece but so far none match the quality, style, design or ease of installation like the VAC. Also these companies fail to provide technical support on this product as they have no real clue as to what they are selling. As a proud owner of a BMW why settle for a cheap imitation when you can have the real thing.