flat flange
Features: Simple structure, flat sealing surface, relying on gasket compression sealing, application: connecting the middle and rear sections of most household cars

flange
Features: The sealing surface has a raised ring, which enhances the positioning and sealing performance of the gasket; Application: Connection between exhaust manifold and three-way catalyst

V-shaped clamp flange
Features: Used in conjunction with V-shaped clamps, quick installation and disassembly, excellent sealing performance; Application: High performance vehicles, modified exhaust systems

Floating flange
Features: The flange can move slightly, compensating for thermal expansion, contraction, and installation errors; Application: Long distance exhaust pipe section connection

Integrated molding flange
Features: Integrated stamping with exhaust pipe, higher strength, no welding points; Application: Original high-performance exhaust

Reducing Flange
Features: Different diameters at both ends, used to connect exhaust pipe sections of different specifications; Application: When the specifications do not match during exhaust modification or maintenance