Our NEW-12mm thick M102 (1.8-2.3L) 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(up to 45mm “outside diameter” tubes) so that they can be welded from the inside (& or outside) if you choose. Once fabrication is complete you can then have a machine-shop mill your gasket surface flat and still have plenty of thickness left.
If you want to build n/a tuned header please check out our 8mm flange sets.
Our NEW 12mm thick M102 (1.8-2.3L) 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(up to 45mm “outside diameter” tubes) so that they can be welded from the inside (& or outside) if you choose. If you want to build n/a tuned header please check out our 8mm flange sets.