Chambered Muffler Tubes Please Help

[K10Chase]

I have 30" Mid-America Motorworks chambered exhaust in 2.5in on my truck and I think they sound pretty good. Inside you can't really tell how loud they are and they mellow out when cruising at 50, but they are definitely noticeable when you get on it. I don't know if they still sell just the mufflers, but they were only 40 a piece when I got them and that was in 2010. I would definitely recommend them for the price.