Back in my beginning days with the 3FE one of the first things I needed was a new exhaust system & the local speed shop removed the Cats & created a dual system which turned out ridiculously loud. His solution was to install cherry bombs in front of the mufflers which quieted it down to a tolerable level, of course all with no power or performance gains though. It's rusted out now & time for replacement so I'm hoping to get some input from what has worked for other Brothers in MUD. I plan to do an EGR delete mod & valve adjust at the same time in hopes of getting back to the crisp running rig I had 100K miles ago. Thanks!