material Light weight and durability This is High quality of Stainless Steel material Easy installation, Excellent fitment and Superior Material exhaust bypass valve is one of the most popular and reliable exhaust bypass valves on the market for high boost competitive vehicles. This 3.7-inch high valve is designed to be compact and suitable for installation in small spaces, while the V-shaped flange makes installation simple. Multiple air intakes allow you to configure this valve according to your preferences and require their ports on your specific vehicle. Compared to competing exhaust valves, the 316SS valve housing provides a longer product life, and the high-temperature NiCrFE alloy valve ensures worry free operation and ultra fast response. The 17-7 PH stainless steel actuator spring provides stable pressure at temperatures up to 900 ° F (483 ° C)! The Nitronic 60 stainless steel valve seat and liner, along with all stainless steel hardware, provide additional lifespan and durability. By combining two internal springs, the preset stiffness of the internal springs is 22psi Type: Turbocharged Exhaust Pressure Relief Valve Condition: Fitment Type: Direct Replacement Colour:Silver Material:Stainless steel Package Contents: 1 x Turbocharged Exhaust Pressure Relief Valve Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.