Use this flange to adapt the JMF V-band cast merge collector to a T3 turbo merge collector, made from 1/2" 304SS. Holes are threaded for M10x1.25. Requires you to weld a small extension tube on the wastegate port BEFORE welding the collector to this flange. If you do not follow this order it will be impossible to weld all the way around the wastegate tube.
