Bullet style muffler recommendation (Quiet Please)...yup, getting older lol

It is a bit weird, they do classify the the welded round mufflers as ultraflows, but separate them from the case ultraflows, as far as loudness and marketing goes. They r on Amazon cheaper than even my commercial account at atech/summit also.
True. Originally was using the 4x9 17220 case Ultraflo’s but the welds cracked at the lengthwise seams on a total of three mufflers (replaced the first set that both cracked under warranty) but one of the replacement set cracked agin (likely due to the harmonics/vibration and the way I have them mounted IDK) so I went with the round. No issues anymore. I got mine from Rock Auto and got the extra %5 discount as well. About the cheapest I found (3” in/3” out version) 935CFAD1-020E-4429-B8F9-93009763E7E7.png