50mm Blow-Off Valve

The Forge Motorsport FMDVRAYV2 is a 50mm blow-off valve engineered for superior performance and reliability in boosted engines. This valve is the largest displacement unit currently produced by Forge, featuring a unique design with a 50mm (2”) aluminum piston that eliminates the common issue of split diaphragms found in other designs. Constructed with precision, the FMDVRAYV2 utilizes world-leading Eibach springs, offering more consistent operation and improved response times. Internal components have undergone numerous enhancements to ensure faster reaction and extended service intervals. The piston is equipped with heat-stabilized Viton O-rings and lubricated with high-temperature Mobil1 grease, contributing to its longevity and minimal wear. It is available in anodized black or anodized purple, allowing for aesthetic customization. Forge Motorsport stands behind this product with a unique Lifetime Warranty, underscoring its quality and durability. The recommended service interval is every 3 years or 20,000 miles. Buyers are encouraged to check their vehicle compatibility and contact Forge Motorsport if unsure. The product is also listed as discontinued, with an estimated restock date in mid-2026.