Quiet 3" System Is There Such A Thing

[dog25t]

Hi guys i know this is probably pushing it but i have to ask

Is there such a thing as a quiet 3 inch exhaust for a R33 GTS~t.

If so does anybody have Db test something close .

other wise i may have to do a stealth system like pic....

[KiwiRS4T]

Hi guys i know this is probably pushing it but i have to ask

Is there such a thing as a quiet 3 inch exhaust for a R33 GTS~t.

If so does anybody have Db test something close .

other wise i may have to do a stealth system like pic....

Good quality round centre muffler and oval rear muffler can be within legal limits.

[Leroy Peterson]

my 3" inch system is legal, quiet and not restrictive.

3.5" dump, 3" 100cel cat, 2x 3" straight-through mufflers, dump tip. All stainless, all magnaflow.

not a skyline, but turbo cars are generally same-same.

[Ben C34]

Yep. I easy to make a turbo car have a quiet 3inch exhaust

[Dose Pipe Sutututu]

Yep

I run a 3.5" system and I can tell you it's quieter than 90% of the skylines out there....

3.5" dump -> 3.5" cat -> 3.5" mid muffler -> 3.5" resonator -> 3.5" muffler

[tridentt150v]

At 100km/h the engine/turbo noise and general tyre/road noise kills any quiet time you might get anyway!!! Well it does in mine. If I want to drive and listen to music the volume knob gets a work out!!!

[sneakey pete]

Not very many system's run a twin muffler.

My 3" isn't very loud and all it has is a mid muffler and a cannon I think, quite fond of it really, Shame it'll have to go to go bigger

[Dose Pipe Sutututu]

Once you get 2x mufflers & a resonator to remove the "bark" from the exhaust it's pretty quiet.... the tyre/road noise is the loudest thing in my car at cruise.

On the loud pedal there's "some" noise but you can still hold a full conversation without raising your voice.

[GTSBoy]

Yuh, my normal 3" with 1x centre muffler and 1x large rear is as quiet as you'd want. It only makes <20% of all the noise in the car. Half the time I wish I had a more antisocial exhaust.

[usmair]

if yr interested, my super super quiet 3" exhaust from my 33 GTR will be coming off soon (i'm actually annoyed that it is too quiet and going to a 3.5" varex).

i think they are interchangable with gtst's..... if so you could buy that one from me

Edited June 10, 2016 by usmair

[jet_r31]

Yep

I run a 3.5" system and I can tell you it's quieter than 90% of the skylines out there....

3.5" dump -> 3.5" cat -> 3.5" mid muffler -> 3.5" resonator -> 3.5" muffler

What brand of mufflers you using?, got any part numbers?

Id like to build a 3.5 inch exhaust, but my mates ones are super drony even with 2 big mufflers and a lot of 3.5 inch mufflers are only 3 inch internally so im sorta put off atm

was just going to go 3.5 inch to just before diff and go back to 3 inch and use muffflers i have used before that dont drone like crazy

cheers

darren

Edited June 10, 2016 by jet_r31

[33GTRV]

Its inexpensive to have a good exhaust made. I had a 5" dump to a 4.5" system with 2 mufflers for less than 1k. At this size it is 2db under the noise limit.

[jet_r31]

1K..was labour free? the material to make it would be that ,or close... or way over depending what you bought

cheers

darren

Edited June 10, 2016 by jet_r31

[Dose Pipe Sutututu]

What brand of mufflers you using?, got any part numbers?

Id like to build a 3.5 inch exhaust, but my mates ones are super drony even with 2 big mufflers and a lot of 3.5 inch mufflers are only 3 inch internally so im sorta put off atm

was just going to go 3.5 inch to just before diff and go back to 3 inch and use muffflers i have used before that dont drone like crazy

cheers

darren

the mid muffler is a basic hurricane round 3.5" muffler, the resonator has been cut off same cat back (HKS Priest) and the sides trimmed till the pipe work became 3.5" the rear muffler is a massive HKS Priest muffler which isn't really 3.5" more like 3.25" but good enough.

Funny enough, when the gate cracks the exhaust gets even quieter.. (it's plumbed back after the cat) like so (old pic, all the shit is wrapped up and also the wiring has been cleaned up):

[zebra]

My soarer is loud as f**k with its 3.5" system

Has a big hooker aerochamber at the back and a custom mid muffler (its small cause f**k all room with a 3.5" pipe)

What mufflers are you guys using on the quieter systems?

[Piggaz]

Try SMB mufflers in Sydney. INTUNE on here has two of their mufflers on a 4 inch and its pretty damn quiet! I have heard a 3.5 inch on a 34 and it was even better!

[zebra]

Cool I'll look them up

[jet_r31]

My soarer is loud as f**k with its 3.5" system

Has a big hooker aerochamber at the back and a custom mid muffler (its small cause f**k all room with a 3.5" pipe)

What mufflers are you guys using on the quieter systems?

i thought the hooker was one of those mufflers that is actually 3 inch internally aswell, only has 3.5 outers

cheers

darren

[zebra]

The muffler tube is 3.5 but has a reducer ring in one end

[Piggaz]

What a nugget!