Application: Wastegates provide a means to control the boost pressure of the turbo charged engine. Wastegates work to bypass exhaust flow from the turbine wheel. Bypassing the exhaust flow reduces the power driving the turbine wheel to match the power required for a given boost level. Similar to the BOV, the Wastegates uses boost pressure and spring force to regulate the flow bypassing the turbine.Wastegates are bolted to exhaust manifold or header.Details and Specifications: Brand Name: SPELAB Model Number: SPIS00509 Mounting Position: Front Type: Wastegates Size: 44mm Material style: Steel and Alumium Color: Red/Black/Brown/Silver/Purple Exterior: Polished Weight: 1800g Fitment: Any 44mm Standard V-Band Wastegate Port Features: High performance stainless steel wastegate Ductile cast iron valve body to resist extreme temperatures and warping Valve body has fin heat sinks to help dissipate head and minimize heat on the diaphragm body Package including : 1 x Wastegate All necessary installation hardware Note: No installation guides are included, we highly recommend to seek professional installation. Any damage during installation will not be refunded. Will come with everything you see in the picture. Please check that the picture matches before purchase. The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding.