Go Fast Bits SV52 Blow off Valve / Diverter Valve - Universal Weld On.
The Go Fast Bits (GFB) SV52 Blow Off Valve is the ultimate solution for high-powered turbocharged and supercharged engines, delivering unmatched flow capacity, strength, and compact design. Standing only 86mm tall (including the weld-on adaptor), the SV52 is 10mm shorter than its nearest competitor — and it flows more, making it the leader in compact, high-performance BOVs.
Engineered for extreme boost applications, the SV52 is pressure-rated to an incredible 300psi, ensuring reliability in the most demanding builds. Its CNC-machined monobloc aluminium body and 52.5mm anodized piston with Viton seals guarantee long-term durability, smooth operation, and consistent performance under intense cyclic conditions.
Unlike diaphragm-based designs that wear out under repeated pressure reversals, the SV52 uses a piston system, eliminating failure points while providing superior sealing and response. It’s built to last, backed by a lifetime warranty for total peace of mind.
The SV52 also includes 2 springs and an adjustable spring preload system, allowing you to fine-tune for faster throttle response and quicker boost recovery after gearshifts — without the need to buy extra springs. Designed for engines with manifold vacuum ranging from 5–22inHg (17–74.5kPa, 2.5–11psi vacuum), it suits a wide variety of forced-induction setups.
Key Features:
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Compact high-flow blow-off valve — just 86mm tall
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Handles up to 300psi boost pressure
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Outflows all competitors in its class
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CNC-machined monobloc aluminium body for strength and reliability
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52.5mm anodized piston with Viton o-ring seals for durability
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Piston design (not diaphragm) — immune to pressure reversal failures
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2 springs + adjustable preload system for easy tuning
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Designed for engines with 5–22inHg vacuum range
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Compact weld-on adaptor mounting saves space in tight bays
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Lifetime warranty for worry-free performance
Built for serious enthusiasts and racers, the GFB SV52 Blow Off Valve delivers the perfect combination of size, flow, strength, and reliability.