Sluggish boost response and compressor surge can ruin the driving experience on a modified R33 GTS25T RB25DET. The GReddy/Trust Type-FV2 Blow Off Valve Kit (11521214 / BFV2-225) offers a compact, high-performance solution with an extra-long valve stroke and a specialized funnel adapter that significantly increases flow velocity for superior relief performance and sharper throttle response.

This Type-FV2 BOV is fully adjustable and supports both recirculate-to-intake and vent-to-atmosphere setups, giving you flexibility for street or track use. The silver body features robust construction that outperforms standard valves with quicker reaction times and more consistent boost control between shifts.

At Terra Firma Automotive, we supply this genuine GReddy/Trust Type-FV2 Blow Off Valve Kit as a direct bolt-on upgrade designed specifically for the R33 GTS25T RB25DET with stock-type piping and flanges.

• Compact Type-FV2 valve with extra-long stroke for high relief capacity
• Specialized funnel adapter maximizes flow velocity and performance
• Eliminates compressor surge and improves boost response between shifts
• Supports both recirculate and vent-to-atmosphere configurations
• Direct bolt-on fitment for R33 GTS25T RB25DET (ECR33) stock piping
• Silver finish (black version discontinued)
• Adjustable spring tension for mild to heavily tuned setups
• Durable construction for reliable high-boost operation
• Clean, professional under-hood appearance with GReddy branding
• Trusted upgrade for responsive RB25DET performance
• ⚠️ Emissions / California Legal Disclaimer – Off-Road / Competition Use Only: This product is intended for off-road, competition, and track use only. It is not legal for sale or use on public roads or highways in California (or any other CARB-adopting state). For more information Click Here.