I only have experience with their mufflers, and I can only speak rave reviews about them
Can't help you with the LTs though, but if you are going the route of a prochamber, I have one brand new sitting in my garage that I never used. I was hoping I could swap my x pipe for a Prochamber, only to find that it was too short. Shoot me an email if you're interested in it, it is doing me no good letting it just sit