2-bolt Stainless Steel F lange (4in I.D.) Each

The Vibrant Performance 2-bolt Stainless Steel Flange with 4-inch I.D. is a precision exhaust system component engineered for collectors, custom builders, and high-performance enthusiasts working on turbo or supercharger applications. Manufactured from stainless steel and featuring a 0.375-inch thickness, this flange delivers the durability and corrosion resistance required in demanding engine environments where standard mild steel flanges fail under thermal cycling and moisture exposure.

The two-bolt mounting pattern with a 4-inch bore diameter accommodates standard collector sizes and integrates seamlessly into custom exhaust manifold builds, turbo downpipe systems, and header collector assemblies. Stainless construction eliminates rust formation in salt-air environments and extends service life in high-heat applications where mild steel oxidation degrades both appearance and structural integrity over time. The 0.375-inch wall thickness provides rigidity necessary to maintain gasket compression and prevent exhaust leaks under pressure cycling. At 0.86 pounds, the compact footprint allows integration into tight engine bay installations without sacrificing strength or sealing performance.

This flange suits fabricators assembling custom exhaust systems, automotive shops specializing in forced-induction upgrades, and hobbyists building modified engine packages where premium materials justify the investment. The Vibrant Performance brand positioning in the aftermarket exhaust sector reflects decades of application-specific engineering for street performance and racing applications. Order this stainless steel collector flange individually or as part of a larger exhaust build—precision components from a manufacturer known for exhaust system reliability and corrosion resistance in competitive and street-driven platforms.