5.5"X2.4"Universal Blue Aluminum Oil Catch Can Reservoir 140Ml+Breather Filter Diverter & Blow off Valves ***Note: B20 blocks don't have

***Note: B20 blocks don't have this port

eBay HKS SSQV Adapter Flange For Subaru Legacy GT Forester XT 08-14 Turbo Blow Off VF

LED Lighting

Built-in Dual L-Styling LED DRL (Daytime Running Light)

5.5"X2.4"Universal Blue Aluminum Oil Catch Can Reservoir 140Ml+Breather Filter Diverter & Blow off Valves ***Note: B20 blocks don't haveAn oil catch tank can is used in turbo applications, or high performance racing applications where excessive blow by (leakage past the piston rings) of air and fuel vapor occurs. This creates a positive pressure in the crankcase. During engine operation, blow by gases, as well as oil mist from the rotating components of the engine, pass through the PCV valve and are routed back into the intake for the engine to burn off. However, some of the oil mist