Cabin Drone

[vantage08]

Hey guys I got the 3IN DP w/ 3in catback from ZZP installed today. Is sounds awesome! BUt when I hit the gas, the cabin resonation is deafening. Does anybody have a cure for this???
Brent

[silverstreak]

Hey guys I got the 3IN DP w/ 3in catback from ZZP installed today. Is sounds awesome! BUt when I hit the gas, the cabin resonation is deafening. Does anybody have a cure for this???
Brent

Do you have a resonator? If not, that is the problem.

[Bio248]

haha, thats what you get for putting 3" exhaust on a car that doesnt need anything like that. sucker.

get a 2.5" catback WITH A RESONATOR.

[vantage08]

lol I do have the resonator w/ the 3in. Perhaps a bigger res to dull it?

[blueguy]

Put the stock catback back on. That'll fix it

[boosting98]

^and it will! lol.

[vantage08]

If it fit lol stock was 2.5.

[JGT010]

This sort of helps me out, lol. I've been thinking about getting an exhaust mod of some sort. I've heard about Downpipes, Headers and Cat Back Systems. I am not sure which way I'll go, but I certainly don't want anything that will produce intolerable cabin noise. I wonder if you wrapped that downpipe with something that is sound deadening and heat resistant. I wonder if that would be a cheap fix.

[BillBoost37]

Whle razzing him is fun, isn't it possible that in doing this his downpipe is now hitting the sway bar causing it to increase the sound loudly like he's mentioning?

Have you flipped your mounts yet or put in poly to stop the engine movement?

Did you flip the sway bar to ensure the exhaust wouldn't make contact with it?

[Bio248]

If it fit lol stock was 2.5.

stock is 2.25" diameter.

[vantage08]

I had the 3IN DP first and it sounded good with a big power boost. The DP isn't against anything that was def apparent bc I was under there watching. And the mounts are still stock and I'll have to recheck the sway bar. thanks for the tip...yes 2.25 sorry. Which makes it even further from fitting lol. I'm looking into the wrapping. I remember something about it on clubgp.com.

[Bio248]

wrapping what? the catback or the downpipe?

[Liquifire]

I dont think the downpipe is the issue..........provided that it is not hitting anything....

[vantage08]

Probably the res. We shall see.

[Liquifire]

I would guess it is the res as well......you said yours does have one on right now? how big is it?

[vantage08]

I believe it's a 20IN Magnaflow.

[Liquifire]

I thought I remembered them saying it should be 24" or longer to eliminate the rasp.......I am not sure though.

[JGT010]

Wrap the Downpipe

[blueguy]

Wrap the Downpipe

And you based this on what and how it relates to getting rid of exhaust drone?

[Bio248]

it doesnt and wont do a damn thing.