Thoughts on adding resonator to Mountune cat back

[Ceecab705]

What do you guys think about adding a Vibrant Ultra Quiet resonator to the Mountune cat back? I went on a short road trip last weekend and found that doing 75-80 mph for prolonged periods of time got pretty annoying.

 

[CanadianGuy]

Don't see any harm as long as flow is not hampered too much. It already has a Helmholtz resonator in the muffler. I did find that it will mellow after a few heat cycles. Right now it's very nice and only "loud" when under wot. Highway is more road noise than it

 

[Ceecab705]

I do find that it is fine around town. I just don't want to mess up what the Helmholtz resonator is doing since its length is tuned to kill certain frequencies.

 

[CanadianGuy]

I do find that it is fine around town. I just don't want to mess up what the Helmholtz resonator is doing since its length is tuned to kill certain frequencies.

Try it. Can always revert back.

 

[JDG]

What do you guys think about adding a Vibrant Ultra Quiet resonator to the Mountune cat back? I went on a short road trip last weekend and found that doing 75-80 mph for prolonged periods of time got pretty annoying.

Sorry to bump this, but did you ever try this? I just installed a Cobb Catback and have a similar issue between 80-85 on the highway and was considering adding a resonator.

 

[Ptuning_Nate]

Thats odd, with my mountune catback I can hardly hear it inside the car

 

[jeff]

Great thread. I just did a 700-mile interstate road trip and noticed some drone around 80mph. I hadn't noticed any before but really until now I hadn't been at 80mph for any sustained speed. At first I thought it was an exhaust leak, but this makes more sense since others are experiencing it.

Really at normal speeds it sounds terrific. I suspect even the "quiet" exhausts like Cobb and Mountune are going to have some drone at such speeds. However since I don't travel that far or at that speed for a sustained period of time often it's no big deal.

 

[Ceecab705]

Great thread. I just did a 700-mile interstate road trip and noticed some drone around 80mph. I hadn't noticed any before but really until now I hadn't been at 80mph for any sustained speed. At first I thought it was an exhaust leak, but this makes more sense since others are experiencing it.

Really at normal speeds it sounds terrific. I suspect even the "quiet" exhausts like Cobb and Mountune are going to have some drone at such speeds. However since I don't travel that far or at that speed for a sustained period of time often it's no big deal.

I decided it's not worth doing anything about since this car is mainly for comuting and I hardly ever do any sustained driving above 70 mph.