Moroso Spiral Flow. Does anyone have experience with these?

[Ma70.Ent]

Does anyone have experience with these? Do they actually make the car quiet, and are they supposed to be used as a muffler or resonator? I'm guessing a muffler since they mention baffles.

 

[jessetooslow]

yeah, I'm pretty sure its a muffler, but barely its a pure drag race muffler for when a class recommends it. I doubt it quiets any noise.

 

[Rennat]

that WILL quiet something... how much? who knows. depends on the engine too.

 

[Dylan JZ]

actually theyre resonators, or thats whay many use them for and from what I've heard they are very effective for their size.

 

[Poodles]

look like they're restrictive...

 

[BorHor]

look like they're restrictive...

Thats what I think too. Basically down sizing your exhaust to fit in the spiral.