These have been port polished as far in as he could get inside them. Two of the downpipe mounting holes have the threads, two do not. The downpipe still bolts up as normal, so it has no affect on usability. Never used since the port polish work, went with a completely different set up. Just looking to recoup a fair portion of what I put into them. Part #'s: 1238091 and 1233451 $225 plus shipping
