I currently have a slp catback system with the slp double wall tips, and I'm thinking about changing it out with some other catback system. I really like the slp tips. I was wondering if any other catback system has these double wall type tips. The slp catback with a o/r x is really loud and I'm debating on quieting it down, but I would like to go with something that has similar type tips. Thanks in advance.