My friend has an MTS 950. Not the 950S. He got the Delkvic titanium slip-on 10", comes with the mid pipe . Looks beautiful and sounds great, not too loud at all (actually pretty similar to stock). It appears to be very good quality and robust. The carbon endcap is very nice and feel like its cut from solid piece of carbon block. I think its 320$USD. Also available on amazon from Delkvic amazon store. Simple install. 5Hp gain, 24 lbs weight loss. I think the dyno is on youtube from delkvic.