I currently have an old FlowMaster 40 series that needs replaced. I want something with a little less drone and more grumble. I also would like it around the same sound level as the regular 40 series, maybe a little louder. Any ideas? I saw FlowMaster has a Super 40. I believe it's a higher flow 40 series right? If so I might go with that. Thanks for any help and suggestions.

Anybody? Just wondering what some specs on the Super 40 are like. I'm hoping this gives more flow than my old 40 series.