GenVibe - Community for Pontiac Vibe Enthusiasts

Has anyone replaced their stock muffler with a Dynomax (Ultraflow or Super Turbo)? Sounds clips? I don't have the money for a catback and thought there might be some benefit to just changing the muffler. I'm looking for something a little louder and deeper than stock that does not sound raspy or drone on the highway.

i have the ultraflow, since i have the awd and there is no pre-made catback for it. it's pretty decent. durring idle, it has a subtle rumble that you can't hear inside the car. under acceleration, it gets somewhat loud, but no tinny raspy noise at all. go for it!

I have a Dynomax Super Turbo but I also have a full custom exhaust so it is prett loud as well. Here is a link to my set-up and soung clips:http://forums.genvibe.com/zerothread?id=21231

What are the differences between the ultraflow and superturbo? Based on name I'm guessing the ultraflow flows better. Is one louder than the other?

The ultraflow is mostly a straight thru design:The Super Turbo is an "S" design:The Ultra Flow is louder. The Super Turbo is closer to stock.

Thanks!Looks like it's the Superturbo that I'd want to go with. What is the stock exhaust size? Part #?

The one I had on there was 2-1/4" inlet & outlet, both offset and the part # was 17736 the muffler case is 14" long. This one would be best with your stock exhaust.The one I have on now is 2-1/2" inlet & outlet, both offset and the part # is 17749, the muffler case is 20" long.I think the stock exhaust on the base Vibe is 2".