Hey Grumpy, what muffler do you like to run on your C3 Corvette’s? I'll be replacing my current aftermarket dual setup soon and my Dynomax super turbos are getting old. I'm looking for something that doesn't have the dreaded drone and is well behaved while riding through the neighborhood. But, I want to hear it when I get on it. Currently I have the Dynomax Ultra Flow and VT Muffler as two possibilities. I read good things about the Ultra Flow and it seem's to be a relevantly quiet muffler.