Perrin PSP-ENG-624BK Air Oil Separator Black Subaru BRZ Toyota GR86 2013-2026

Vehicle Fitment

• 2013-2026 Subaru BRZ (2.0L FA20 H4, RWD / 2022-2026: 2.4L FA24 H4, RWD)
• 2013-2016 Scion FR-S (2.0L FA20 H4, RWD)
• 2017-2021 Toyota 86 / GT86 (2.0L FA20 H4, RWD)
• 2022-2026 Toyota GR86 (2.4L FA24 H4, RWD)

Fitment Notes

• Fits both FA20 (2013-2021) and FA24 (2022-2026) naturally aspirated platforms - engine is non-turbo on all applications.
• Direct bolt-on installation - no modifications required.
• Also available in Red (PSP-ENG-624RD).
• Does not fit any WRX, STI, Outback XT, or Legacy XT - those use dedicated AOS part numbers.

Features

• Separates oil vapor from crankcase blow-by before it enters the intake system, reducing carbon buildup on intake valves and combustion chamber
• CNC-machined aluminum construction with black anodized finish for corrosion resistance and heat dissipation
• Purpose-built crankcase vent fittings engineered specifically for FA20/FA24 naturally aspirated engine vent locations
• Internal baffle system provides efficient multi-stage oil vapor separation
• Serviceable drain valve for easy oil removal during routine maintenance intervals
• Unlike a catch can, automatically drains separated oil back to the engine - no manual draining required
• Maintains consistent combustion quality and extends intake valve life
• No ECU recalibration or tune required

Specifications

• Part Number: PSP-ENG-624BK
• Color: Black anodized
• Material: CNC-machined aluminum
• Engine Compatibility: Subaru/Toyota FA20, FA24 naturally aspirated (2013-2026 BRZ/GR86/86/FR-S)
• Drain Type: Drain valve - automatically returns oil to engine
• Tune Required: No
• Maintenance Interval: Drain every 3,000-5,000 miles or at each oil change
• Warranty: 5-year Perrin limited warranty
• Made in USA
• Brand: Perrin Performance

Included Components

• 1x Perrin Air Oil Separator Assembly - Black
• 1x CNC-machined crankcase vent fitting set
• 1x Drain valve
• 1x Mounting hardware kit
• 1x Installation instructions

Product Description

The Perrin PSP-ENG-624BK Air Oil Separator is a precision-engineered engine protection upgrade for the 2013-2026 Subaru BRZ, Scion FR-S, Toyota 86/GT86, and Toyota GR86. Even on naturally aspirated FA20 and FA24 engines, crankcase blow-by recirculates oil vapor back through the intake system - over time depositing oil on the intake valves and combustion chamber walls, contributing to carbon buildup, rough idle, and reduced performance. The Perrin AOS captures this oil vapor and automatically drains it back to the engine, keeping the intake clean without any manual intervention.

The CNC-machined aluminum body is finished in a black anodized coating for long-term durability. Purpose-built fittings connect directly to the FA20/FA24 crankcase vent locations for a clean, no-compromise installation. No tune is required. Also available in Red (PSP-ENG-624RD). Backed by Perrin's 5-year limited warranty and made in the USA.