Our 8mm thick M104 exhaust flange set is designed for building your own tuned length 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. If you want to build a turbo manifold please check out our 10mm flange sets.
Our 8mm thick M104 exhaust flange set is designed for building your own tuned length 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. If you want to build a turbo manifold please check out our 10mm flange sets.