Our 12mm thick M117 V8 (5.0L-5.6L) exhaust flange set is designed for building your own turbo manifolds, 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 headers please check out our 8mm flange sets.
Our 12mm thick M117 V8 (5.0L-5.6L) exhaust flange set is designed for building your own turbo manifolds, 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 headers please check out our 8mm flange sets.