Our 8mm thick M103 exhaust flange set is designed for building your own tubular headers, the ports are large enough to allow a “slip inside” fit of the primary tubes so that they can be welded from the inside (& or outside) if you choose. Pipes up to 45mm “OD” (outside diameter) can be used. if you want to build a turbo manifold please check out our 10mm flange sets.
Our 8mm thick M103 exhaust flange set is designed for building your own tubular headers, the ports are large enough to allow a “slip inside” fit of the primary tubes so that they can be welded from the inside (& or outside) if you choose. Pipes up to 45mm “OD” (outside diameter) can be used.