TTI exhaust. Shhh, is it running?

Iron mike, I just put a complete tti exhaust on my 70 dart. I have stock manifolds, i bought the 2.5 with a x pipe with the dynomax super turbo mufflers. Like you said the system was well designed it went on super easy. But unlike you mine is way to loud. It sounds good outside but I have some problems at certain rpm's where it's just annoying you just want to back off the gas or give it gas to get out of that range. I was going to install some dynomat to quite it down. Maybe it's just personal taste but the drone drives me nuts.