Moroso Catch Cans Silver 2004-2007 STI | Small Body Design | Engine Crankcase Ventilation Catch Can
Overview
The Moroso Catch Cans Silver for 2004-2007 Subaru WRX STI models are precision-engineered components designed to improve engine longevity and performance by capturing excess crankcase vapors, oil mist, and moisture before they can re-enter the intake tract. These catch cans are specifically tailored for Subaru STI engines from 2004 to 2007, addressing a common issue where factory PCV systems vent contaminants back into the intake manifold. This can lead to detonation, carbon buildup on intake valves, and reduced intercooler efficiency on turbocharged models.
Moroso’s approach centers on durable billet aluminum construction with internal baffling and mesh media to effectively separate oil and moisture from the crankcase gases. The small body design offers a compact solution that fits well in tight engine bays without sacrificing capacity. Included hardware such as heavy-duty brass fittings and stainless steel mounting brackets ensure a secure, long-lasting installation. Moroso catch cans stand out for their robust build quality and practical design, making them a trusted choice for Subaru enthusiasts seeking to maintain a clean intake system and optimize engine health.
By preventing oil and moisture from contaminating the intake tract, these catch cans help maintain consistent combustion quality and intercooler performance, which is critical for turbocharged Subaru WRX STI models. Cleaner intake air translates to more reliable power delivery and reduced maintenance concerns over time. This product is an essential upgrade for owners looking to preserve their engine’s efficiency and extend the life of their turbocharged Subaru.
Features & Specifications
This Moroso Catch Can is engineered for 2004-2007 Subaru WRX STI platforms and features a compact small body design. Constructed from billet aluminum, it delivers effective crankcase vapor separation for Subaru enthusiasts seeking improved engine cleanliness and performance.
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Brand: Moroso
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Product: Moroso Catch Cans Silver 2004-2007 STI
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Part Number: 85654
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Fitment: 2004-2005 Subaru WRX STI, 2006-2007 Subaru WRX STI
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Material: Billet Aluminum
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Finish: Silver (Polished)
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Construction: Billet aluminum body with internal baffling and mesh media
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Origin: Not specified
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Body Size: Small Body
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Included Hardware: Heavy duty brass inlet/outlet fittings, stainless steel mounting bracket, billet aluminum mounting clamp
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Drain Method: Two-piece body unscrews for draining
Key Benefits
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Performance: Maintains cleaner intake air by capturing oil mist and moisture, reducing detonation risk and improving combustion consistency.
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Durability: Robust billet aluminum construction with quality fittings ensures long-lasting reliability in demanding Subaru engine bays.
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Fitment: Compact small body design fits tight engine compartments on 2004-2007 WRX STI models without modification.
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Maintenance: Easy to drain via two-piece body design, simplifying routine upkeep and oil removal.
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Engine Health: Prevents oil deposits on intake valves and intercooler, preserving turbo efficiency and reducing carbon buildup.
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Installation: Includes all necessary mounting hardware for a secure and professional fitment.
What's Included
- 1× Moroso Catch Can Silver Small Body
- Heavy duty brass inlet and outlet fittings
- Fuel/Emission/PCV vapor hose
- Stainless steel mounting bracket
- Billet aluminum mounting clamp for catch can body
- Installation instructions
Installation & Compatibility
Installation of the Moroso Catch Can is straightforward for enthusiasts with basic mechanical skills and common hand tools. The kit includes all necessary hardware and hoses for integration into the factory PCV system on 2004-2007 Subaru WRX STI models. No special tools are required, but careful routing and secure mounting are essential to prevent leaks and ensure proper function. This catch can is designed specifically for the listed STI model years and may not be compatible with other Subaru platforms or years without modification. No engine tuning is required after installation, but regular draining of the catch can is recommended to maintain optimal performance.
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Professional Installation: Recommended for best results
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific year and trim level
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