GFB SV52 High Flow BOV - Rated at Over 300psi (Suits All High Powered Turbo or Supercharged Engines) Legacy 0mm File Fit Rings 3557MS-112

0mm File Fit Rings 3557MS-112

30216AA070

SKU: TS-0223-1082

by isolating the manifold from the heat travelling through from the engine's cylinder heads

GFB SV52 High Flow BOV - Rated at Over 300psi (Suits All High Powered Turbo or Supercharged Engines) Legacy 0mm File Fit Rings 3557MS-112Strength and reliability is the primary factor, something that a diaphragm simply cannot match in a high boost BOV environment. Diaphragms have their place (we use them in our wastegates), as they offer low friction and good sealing capability. However, a rolling diaphragm is only designed to receive a net pressure on one side, which essentially "inflates" it against the walls of the chamber in which it resides, exactly how it is used in a wastegate