BLOX Racing Air Oil Separator (AOS) - 2002-2007 WRX / 2004-2021 STi | BXPT-51500-NF

Oil vapor in your intake means gunked-up charge pipes, dirty intercoolers, and a less efficient engine. The BLOX Racing Air Oil Separator pulls that unwanted oil out of your Subaru's crankcase ventilation system before it ever reaches the intake, so your engine runs cleaner and more efficiently.

It's a direct factory bolt-on with minimal modification to the OEM PCV system, built from aluminum and finished in black.

What's Included

• (1) Black aluminum Air/Oil Separator, 2-piece body and center
• (3) AOS hose fittings

Not Included and Required

• (1) 1/2" to 1/2" to 1/2" tee hose connector
• (2) 1/2" to 1/2" hose connectors
• (4) 1/2" to 5/8" hose connectors
• (1) 5/8" to 5/8" 90-degree hose connector
• (1) 5/8" cap and (1) 5/8" plug
• (1) 1/2" cap and (1) 1/2" plug
• 8 ft of 1/2" hose
• 1 ft of 3/8" hose
• 1 ft of 5/8" hose
• (20) plastic zip ties

Fitment

• 2002-2007 Subaru WRX
• 2004-2021 Subaru WRX STi
• 2004-2008 Subaru Forester XT

SOLD AS IS - NO WARRANTY - ALL SALES FINAL