I don't.
But, mufflers and their particular sound is strictly a matter of taste. I personally love the Pypes Race Pros...much less restriction than any Slowmasters.
Dynomax Ultra Flows are good too.
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2017 Camaro RS -217 cu in 365 HP w/8 speed auto
1967 Camaro SS -5.3L LS w/4L60E & 4.11 12 bolt
2019 Cadillac XT5 3.6L V6 w/310 HP & 8 speed AWD
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