Moroso Air Oil Separator Subaru WRX 2006-2007 / STI 2004-2007 240SX_1989-1994 (1) PERRIN License Plate Relocate

(1) PERRIN License Plate Relocate Stem

and harshness) for a smoother ride and ultra-low brake dust accumulation

Stock Diameter

6 in (320 mm)

Moroso Air Oil Separator Subaru WRX 2006-2007 / STI 2004-2007 240SX_1989-1994 (1) PERRIN License Plate RelocatePart: # 85484 From the factory excess crankcase vapors, residual oil and moisture are vented back into the intake manifold and crankcase ventilation system. This can coat the pistons and everything else with a detonation prone layer of oil. This is no good in a turbocharged vehicle. Moroso has come up with a 2 tank system that allows the factory crankcase ventilation to operate how it was designed. No other system on the market does this. Billet