Our 12mm thick M103 exhaust flange set is designed for building your own turbo manifold, 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 tuned length n/a header please check out our 10mm flange sets.
Our 12mm thick M103 exhaust flange set is designed for building your own turbo manifold, 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 tuned length n/a header please check out our 10mm flange sets.