[AcampoDave]

I figured I'd give this one another update since I've done some more stuff in the name of peace and quiet.
First, thanks goes out to MikeC for the recommendation of the Noico. I went ahead and did the floor, and back wall with the Noico Red version and it's a great product. I also found that my mainfolds really didn't seal too well to the block. Not so bad as to say "Hey dude there's a leak here!" but bad enough to be noticeably quieter after having them resurfaced at the machine shop. I also added a crossover pipe, which does soften the tone, as well as second resonator to each pipe right at the end. This one also made by Vibrant. It's a sweet little stainless bottle style job that really helps.