Yep, I spoke with Bob several times and he's one of the people that told me to use the Ultraflows. You are correct; nothing outflows them. Other PSMCDR guys have also documented the improvement going to the ultraflows and it is definitely measurable.
Funny, in the old days I sold a ton of Walker product when I worked for Lordco.

....but equally important to me (and the pure stock guys) is that the Ultraflow is roughly the same size and configuration as stock and in comparison to other mufflers that do flow as well, the Ultraflow is BY FAR the quietest. I've yet to see any other muffler that offers all three things: stock look, relatively low sound and low/no restriction.



Dave

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Is that this muffler? I'm not saying I'm getting it from Jegs, I just want to make sure this it.
http://www.jegs.com/i/Dynomax/289/17217/...CFQqDfgodlDsAiA