Anyone run this particular muffler, specifically the 53553 part number. I know a couple guys running the 50 series HD, but this is the 50 series Big Block muffler. It is supposed to be quieter than the HD. Just wondering if anyone is running it and what they thought of it. Did you notice any difference in drivability or mileage (good or bad). What about drone? Looking for something a little more aggressive than my current muffler, that will be a near direct replacement, but dont know about running flowamaster. Always been a magnaflow guy, but the 22” magnaflow outlet is not exactly in the right spot for a direct replacement. Just looking for input.