The Mishimoto PCV Side Baffled Oil Catch Can System for 2015+ WRX is designed and engineered to reduce carbon buildup, a common issue with direct fuel injection engines such as the FA20-DIT. This oil catch can system includes one patent pending Mishimoto Compact Baffled Oil Catch Can, designed to separate oil particles from the PCV air that would normally be routed back to your intake. The internal air diverter increases air turbulence and ensures all the oil sinks to the bottom of the can, leaving nothing but clean air to pass through the 50-micron bronze filter. An internal baffle keeps the collected oil from splashing around under race conditions. The 100% billet, 6061 aluminum cans include two black CNC-machined aluminum fittings and direct-fit steel powder-coated brackets which mount the cans in serviceable locations. This makes maintaining your 2015+ WRX system a breeze, as the cans are also 100% washable, unlike many others that require you to replace your filtration system. To connect the cans to your PCV system, the Mishimoto Baffled Oil Catch Can System for 2015+ WRX includes application-specific hoses keeping your engine bay looking clean! Whether you are entering your 2015 WRX in the local rallycross, or lapping at your next track day, trust Mishimoto and our line of 2015+ WRX parts to keep your WRX cool. This kit, like our entire line of 2015+ WRX parts, includes the signature Mishimoto Lifetime Warranty.