Moroso Air Oil Separator Small Body Black Subaru STI 2008-2014 NeonSRT_2003-2005 When mated with the P/N

When mated with the P/N 11218 100-Micron Filter and / or the P/N 11217 Pressure Regulator

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KLC172 & KLC182 - essential to "Activate more grip"

Lowered Stance (1″–1

Moroso Air Oil Separator Small Body Black Subaru STI 2008-2014 NeonSRT_2003-2005 When mated with the P/NPart: # 85645 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. These Billet