KraftWerks Large Billet Aluminum Blow-Off Valve w/1.00in. Port

The 37mm piston inside this KraftWerks blow-off valve is key to its quick response and ability to handle high flow. This valve is built from a heavy-duty, CNC billet aluminum body and components, making it a well-built piece for your forced induction system. It's designed to help control compressor surge, which can minimize wear on your supercharger or turbocharger and potentially prevent bearing failure. Unlike some other valves that use diaphragms, which can leak or tear over time, this KraftWerks valve uses a piston design for better durability.

This particular blow-off valve features a 1.25-inch connector port and is intended for custom turbo setups or race kits. It's finished with a black powder coating for a stealthy look under the hood. While it's not CARB approved and cannot be shipped to California, it offers a solid option for those building a custom forced induction system where precise pressure management is important.