fast88pu 3,313 #26 Posted October 20, 2016 Nope no unions. Just tighten it up good. Could weld if it's an issue or use a locking nut Share this post Link to post Share on other sites
bmsgaffer 2,043 #27 Posted October 20, 2016 (edited) @fast88pu I think @USHorse means threaded joint. Yes, those iron pipe pieces are threaded together but they are not a threaded union (see below). The person that made the stack on my 854 tack welded the joints, it stays vertical but the only way I will be able to remove it is to cut the muffler off (they buggered up the threads)... just FYI. Edited October 20, 2016 by bmsgaffer Share this post Link to post Share on other sites
