Crawford V3 Dual Chamber Air Oil Separator Kits
Protect your Subaru’s engine with Crawford Performance’s V3 Air Oil Separator (AOS) kits. Featuring proprietary dual-chamber technology, these kits capture more oil and contaminants than traditional separators, reducing carbon buildup and keeping your intake system cleaner. Designed for daily driving and track use, the V3 maintains factory PCV functionality while delivering reliable, long-term performance.
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Crawford V3 Air Oil Separator: The Performance Standard
Proprietary Dual Chamber Design
The V3 uses Crawford's exclusive dual-chamber technology that outperforms traditional single-chamber separators. Oil droplets pass through two distinct separation stages, capturing more contaminants before they reach your intake system. This translates to cleaner combustion chambers, reduced carbon deposits, and sustained power output over time.
Emissions Compliant Engineering
Unlike many aftermarket solutions, the V3 retains your factory PCV valve configuration. This keeps your vehicle compliant with emissions regulations while delivering superior performance. Daily drivers benefit from this design since it maintains all OEM safety and regulatory functions.
Track-Proven Durability
Built with aerospace-grade aluminum and featuring CNC-machined components, these separators handle extreme conditions without failure. The internal baffle system manages high-G cornering forces while maintaining consistent separation efficiency. Temperature cycling from -20°F to 250°F won't compromise performance or structural integrity.
Installation Specifics
Each kit includes vehicle-specific brackets, pre-formed silicone hoses, and stainless steel clamps. Installation typically requires basic hand tools and takes 2-3 hours. The kit integrates with your existing PCV system without modifications to engine management or requiring custom tuning.
Performance Impact
Independent dyno testing shows V3-equipped engines maintain 95% of their original power output after 50,000 miles, compared to 85% for engines without proper crankcase ventilation. Blow-by contamination drops by 78% versus stock PCV systems, reducing the frequency of intake cleaning services.
Maintenance Schedule
Empty the collection chamber every 3,000-5,000 miles depending on driving conditions. The entire process takes under 10 minutes and requires no special tools. High-performance driving or track use may require more frequent servicing.
V2 to V3 Upgrade Program
Currently running a V2 kit? Crawford offers 30% off V3 upgrades when you trade in your existing system. V2 kits maintain strong resale value due to their proven track record and broader vehicle compatibility.
Don't see your vehicle listed? V3 development continues for additional platforms. V2 kits remain the recommended solution for track-focused builds and vehicles not yet covered by V3 applications.
Why Choose Crawford Performance for Subaru Products
At Crawford Performance, we don’t just provide parts — we engineer solutions. With decades of motorsport experience, including collaboration with Subaru of America and the creation of Ken Block’s iconic Gymkhana vehicles, we ensure every product meets the highest standards of performance, durability, and precision. Whether you’re upgrading for daily driving, spirited weekend runs, or track use, Crawford Performance delivers Subaru products you can trust, mile after mile.
Upgrade Your Subaru Today
Protect your engine, maintain peak performance, and enjoy long-lasting reliability with Crawford’s V3 Dual Chamber Air Oil Separator.
→ Shop V3 AOS Kits Now
