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Discussion Starter · #1 ·
Hey guys.

Anyone use or have heard a Dynomax Ultra-Flo on a Cadillac before? The Northstar doesn't really count. lol. I'm looking for the 4.5/4.9. But Northstar guys chime in too. lol. I have a Dynomax Super-Turbo on my 4.5 right now. It's nice. No interior noise at all. The idle is nice. Actually...the muffler could be louder. I don't know how it sounds outside of the car besides idle becasue I'm always driving. lol. I noticed the Ultra-Flo is straight through. That would obviously be louder. Does it sound any good on a Cadillac?


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