Flowmaster Super 40 mufflers

I run them Kegan. I had the 10 series and they did nothing. Loud and they rapped at low speeds. I went to full 3" rolled exhaust, an H pipe and Flowmaster 40's. I like the sound, though I might like it a little louder. I am planning some electric cutouts one of these years as well.
Glad to hear they won't be to terrible. Flowmaster has a 2.5" stainless steel exhaust kit for headers back using 2.5" in/out Super 40s I found a site they has them for less than the Flowmaster site so I was considering a kit to put onto my '74 Scamp and use a set of Dougs D453s. Might get Dougs cut outs later on down the road.