I have the old LRD adjustable pipe on my wifes trx310/ct motor, overall a good pipe, a few small issues, Well only one major issue i guess. For the $500 price, the adjustment seems kinda goofy, It only lines up on the hangers in one position, I am going to correct that with some slotted carbon fiber pieces once i get it back together, but ya kinda would think they would have covered that when they were building them.  That was my big issue, the others are yes it does leak! i usually "glue it together with high temp gasket maker. I have tried a number of different methods. The gasket maker seems to work the longest. Every other dune trip i have to take it a part and do it again. The silencer also turned form "black powdercoat" to a dull brown after 1 season, i sanded it down and polished it after that.  In my opinion i should have held out and gotten an old school hand coned pipe, But you know how it is when you have credit card in hand and you are at the bike shop! Her bike only makes 51hp with the 310 setup, but it pulls from the bottom all the way up, no lightswitch, Hate lightswitch motors lol

Arlan always reccomended using threebond to seal his adjustable pipes.  May want to give it a try, it will hold up better.