Originally posted by DemonSVT:
The difference in sounds between two near indentically made resonators (like Magnaflow or Dynomax straight throughs) are going to sound remarkably close. A resonators main job is drone reduction. The only real way to get a different exhaust tone with a resonator is by flow restriction (size) or a different internal design. (like baffles of chambers )

The mufflers are what shape the final overall tone & volume of the exhaust. (i.e. muffle ) The Dynomax Ultraflow (SS & race) mufflers are a bit higher pitch because they are less restrictive then the others available.
I chose Magnaflow rears because it was easier to package their small mufflers in the rear. (already 3 years ago ) Packaging 9x13 mufflers back there between the suspension and the tow hooks is a big PITA. If I had to do it again I would have just stuffed some DynoMax mufflers in there. They do fit because I have done it a couple times.



Thanks Demon,
I checked the DynoMax website and there is an "Ultraflow" and an "Ultraflow SS". According to their website the Ultraflow flows better (i.e. higher cfm rating). The difference was small so it probably doesn't matter for my application. Here's a stretch, but do you recall the part# for the DynoMax rears you installed? If not, what are their approximate dimensions? (9 x 13???)

'99 SVT 3.0L Hybrid