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When I test drove that GS, man, I was blown away by how quiet it was. It's probably about half the sound of my 4 cylinder.

My RS starts to get noisy around 3k and gets pretty loud, but the V6 just stays quiet until about 5-6k.

Sounds about right, they are quiet stock, very smooth rev too

they might be quiet stock but put a intake headers and exhaust on it and it is the most beatiful engine i have ever heard to bad it dont make enough power had to upgrade to a kl!

My stock GS sounds really nice with the gutted cat. Very quiet, but masculine. It's like a kitten compared to my fast one, though!

I also like the stock exhaust. Inside and outside of the cabin, it sounds nice at all ranges.

But I'm a 4 cyl.

With my headers, polyurethane engine mounts and crossmember bushings, the ZE is actually fairly loud. It's not droning or anything (especially on the highway) but it turns heads revving it while stopped.

The sound when standing about 15' behind is pure music, especially because of the fidanza flywheel. It revs so fast and violent, but is throaty and....

... runs down to parking garage

The sound my car makes is interesting, but it's unique. People who don't know anything about cars recognise the sound of it when I'm coming, lol.

Custom-cut headers, magnaflow high-flow cat, magnaflow 4" muffler and a 2.5 exhaust...I've been told I have one of the quietest exhaust

Replace the high-flow cat with a test-pipe and it sounds literally like a race car, but it's LOUD! And ask those who have heard it, it's loud and unbearable.

my bpt is pretty loud around 3000 to 4000 rpm
i put soundproofing and some foam in the quarter panels.
I am considering putting something under the hood but i would like to know if others have had success with putting a sound suppressor under their hood.

Thanks

Mazda does it with every new vehicle. You should SEE the sound supression stuff in the CX7 or 9. The plastic sheild underneath the car has foam padding on it.

Under the hood they use a fibre type moulded peice. I'm not sure what you would use. Must be fireproof, and not sag with heat. It would also be a PITA to make something to fit onto the firewall, with all of the stuff on it and all...

Good idea, good luck.

brown bread makes a hood liner that i might look into

what did you say i didnt hear you?? i have no muffler on my car at the moment...i think im going deaf dealing with that "k series drone"...but it sounds meaaan when i open er up

my 1.6 was actually not loud without a muffler. i did have a decent resonator

My V6 is currently stock and isn't loud at all. However, when it's cold out and I start it up and wait for it to warm, it sounds like it's going to eat itself. But, once it's warm it sounds nice

My almost stock GS sounds really nice. It has a CAI, stripped underhood, and hollowed cat. It gets a harmonic convergence at a certain RMP that causes 3 different tones to resonate. It's really cool.

Brutally loud.... of course, I removed all of the interior and sound insulation