Ron- now I don't know what to buy ?
I like the pipes loud but, I can't compare your db level with mine. So, your Howe's, I assume they have no packing ?
I'm looking at Howe, Classic Chambered and Firefly Performance Products. Firefly has the best two piece I've ever seen and the clamp is almost undetectable. Beautiful work but, I would get the one piece pipe. Check out the site for pretty pictures. With his pipe, the muffler is exposed meaning, it does not fit inside a 4" muffler housing.
http://fireflyperformance.com/Pipes/index.htm
I don't know what to do now ?