Originally Posted by Reeve
Has anyone ever used or heard a Dynomax Ultraflow muffler? From what I have seen on other cars they are by far the most mellow muffler that's straight through like a magnaflow or borla.
Never heard the ultraflow but on my Vibe I had a SRI and just added a Dynomax Super Turbo muffler and I really enjoyed the sound. When the time comes I'm just going to add a dynomax super turbo to the Focus as well. Here are some sounds clips with it on the Vibe.