exhaust drone

[grand2000prixgtp]

ok i have exhaust drone like no other and i cant find out why. i have a new cat-back and it does have a resonator and i have pacesetter headers. on my old exhaust set up it didn't have any drone at all and it is the same resonator is there anything else that will cause this?

 

[mcvey]

Exhaust leak?

Did you change the mufflers at all?

 

[grand2000prixgtp]

yea they are some from zzp

 

[mcvey]

After I took out my res and put in a 28" GP with ZZP 3" DP you could barely tell there was a difference.

I replaced the stock mufflers with Dynomax Turbos and it immediately deepend the tone and made it a little louder. Quite a bit of drone in the cabin after but I don't mind it.

That might be it.

 

[grand2000prixgtp]

alright ill try my slp mufflers they didnt have drone before.

 

[blueguy]

SLPs are droney mufflers.

Get a cat...that'll get rid of it for sure...IMO I've heard ZZP Catback's suck so idk.

 

[grand2000prixgtp]

really just a cat and it should stop?

 

[mcvey]

really just a cat and it should stop?

It will help for sure. Although I have a cat and I've still got drone.

 

[grand2000prixgtp]

do you have a lot?