Aluminum Blow Off Valve for Ford Focus MK2 ST MK3 ST Astra VXR
Engineered as a direct OEM replacement, this aluminum blow off valve replaces worn factory diaphragm units with a more durable piston-style atmospheric design. Built exclusively for boosted performance applications, it addresses common failures in tuned setups where standard valves struggle under elevated boost pressure. The precision-machined aluminum body resists heat distortion and corrosion while maintaining consistent flow control during throttle lift-offs.
Performance Benefits & Maintenance Tips
- Interchangeable spring set allows fine-tuning for stock or modified turbo charts without changing the entire unit.
- Fully serviceable internal components extend service intervals compared to sealed OEM assemblies.
- Verify mounting surface flatness and use fresh sealant to prevent vacuum leaks during reinstallation.
Technical Specifications
- Material: Solid aluminum construction
- Design: Piston-type atmospheric valve with multi-spring configuration
- Compatible Models: Ford Focus MK2 ST 225, Focus MK3 ST 250, Opel/Vauxhall Astra VXR 2.0, Corsa D VXR, Zafira VXR, Buick Regal Turbo, Chevrolet Solstice GXP, Saturn Sky Redline, Ford Fusion 2.0 EcoBoost
- Supported Engine Codes: Z20LET, Z20LEL, Z20LEH, Z16LER, A16LER, B16LER
- Finish: Silver anodized
Package Includes
- 1 × Aluminum Blow Off Valve
- 3 × Replacement Boost Response Springs
Important Installation Notice
This component requires professional bench fitting due to its role in the forced induction system. Comprehensive wiring or plumbing instructions are not provided, as routing varies significantly across platforms. Always consult a qualified mechanic before integrating turbo accessories into your vehicle’s intake tract.
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