GrimmSpeed Air Oil Separator Blue WRX (2002-2007) STI (2004-2018) Mazda The tow hook adapter is

The tow hook adapter is CNC machined hex cut bar stock and anodized black for better corrosion resistance

GrimmSpeed offers an enlarged variation of the standard size OEM gasket

and braking making you feel overall more connected with your vehicle

This means that you can adjust the volume of air released when blowing off

On AT equipped cars it may be necessary to relocate a bracket and wiring harness to install this bar correctly

GrimmSpeed Air Oil Separator Blue WRX (2002-2007) STI (2004-2018) Mazda The tow hook adapter isGrimmSpeed has a unique design for the Subaru WRX, STI and Legacy GT which allows you to keep your PCV valve while separating the oil out of the crankcase and head ventilation air. None of the other competitors on the market are able to vent both. The unit is very compact and efficient, it bolts directly on to the factory oil cap location. You will no longer have to keep tabs on your oil level and or empty the catch can like on most standard cans as