So I love my car through and through. My biggest gripe since getting the car is how noisy it is inside the cabin. My car got backed into so it is in the shop. They gave me a Cobalt for a rental and the thing is so quiet inside. I have put dyno matt completely in the trunk but there are is still a lot of noise in the cabin. Any suggestions without going back to a stock exhasut (hks, hi-flow cat, headers).

 

dynamat!

google it.

 

Well why did you get the HKS exhaust with cats and headers if you want it QUIET?
You should have known that's not a very quiet combo...

 

With hks, hi-flow cat, headers you're not going to get quiet doing anything but by going back to stock. I have the nismo exhaust and it's pretty close to perfect and only gets louder when I am on it.

 

25 cent ear plugs and your set!! You can thank me later

 

dynomat is the ****, lol i like the earplugs too ha

 

Sell it and get a Colbalt SS.

 

get quieter tires

 

There are many exhaust combos out there like the apexi world sport and motordyne vq. Full headers with the hks is the farthest from them. Shoulda researcched more first before you bought the loudest combo...

 

+1 This thread = /Fail

 

And the quietest header/HFC/ True Dual Exhaust combo would be?

I'm thinking of a Bassani/Berk/**haven't decided what brand headers yet. Anyone have an educated opinion on what the quietest true dual exhaust would be. Want to stay as close to stock noise as possible with the performance increase associated with a block back exhaust upgrade.

 

non existant

since everyone's idea of "quiet" varies widely (cannot stress this enough), the best bet is always to attend local meets and draw your own conclusions as far as the exhaust goes.

To the OP - you just essentially drove to Anarctica and asked why it's so cold. Can't have it both ways unfortunately

 

Fabricate and install a set of silencers in the exhaust tips.

Would look weird but it does make the car far quieter.

There's really no other way if you don't take out the exhaust.

 

Haha, this.

 

your Z is pretty effing noisy.

 

i think he means noise other than the noise coming from his exhaust?, maybe...if you mean road noise you can try adding dynamat to your cars cabin and other areas you hear noise coming from, it works well .

 

thr3ad fial..

 

^^ +1

 

look my car was crazy loud too. First Take your entire interior apart. I placed teklite V4 sound absorbing foam on the floors, doors, trunk, wheel wells, everwhere. that made the car 1/2 as loud.

Then I got new tires and alignment.

 

You need test pipes and feathered front tires to truly enjoy the noise.