The 7002 wastegate features an investment cast body made from 253MA chromium-nickel stainless steel, a one-piece stainless steel valve, and a nomex reinforced diaphragm to cope with the extreme conditions and harsh environment of high-boost and exhaust temperatures. ? 44MM VALVE, ? V-BAND INLET AND OUTLET (DIRECTLY COMPATIBLE WITH TIAL MV-R FLANGES), ? 100MM OVERALL HEIGHT, ? ADDITIONAL SPRING AVAILABLE SEPARATELY IS 7PSI (MIDDLE), ? SUPPLIED WITH 10PSI (OUTER) SPRING AND 5PSI (INNER) SPRINGS ? USE SEPARATE OR TOGETHER FOR BASE BOOST PRESSURES OF 5, 10, OR 15PSI, ? COMBINE SPRINGS TO ACHIEVE BASE BOOST PRESSURES OF 5, 7, 10, 12, 15, 17 AND 22PSI,