Illegal Muffler

[someonestolecc]

Gday,

Just wondering if in NSW you are required to have a muffler?

My import will most likely have a straight through. I will be putting a high flow cat on it but if I don't need a muffler I won't get one.

Assuming it's not loud enough to attract attention, and other than noise pollution requirements, is there any legal thing about not having a muffler? EPA or other?

Thanks.

[Bass Junky]

I would beilling to bet that you would have way more than the legal noise level coming out of your exhaust if there are no muffers in the system

Therefore, non-roadworthy.

[someonestolecc]

Is that the only issue tho?

[predator]

i think you have to have a cat, muffler and resonator or its not legal by the EPA.. thats what they checked for when i was in melb..

[someonestolecc]

holy crap AND a resonator?!?!?! ..... that's messed up my car is gonna lose 10kw and sound like crap after all that! :

[WazR32GTSt]

how are you going to have no resonator/muffler and stay under the legal limit??

1" exhaust?

:confused:

[aybee]

Is that the only issue tho?

well there is the issue of bursting your ear drums, and constant head aches!

[aybee]

hell, why bother with a pipe at all.

may as well just have the flames coming out the back of the turbo.

seriously, there are still plenty of exhaust that have cat, resonator and muffler and are still way over the legal limit.

[CerealKiller]

I got no resonator and it's damn loud. I'm going to get one put on when I can afford it though. I'd rather driving comfort than single digits more kw's. I doubt you'll notice a difference.

[someonestolecc]

That's true.

Thing is I know someone with a straight through and it wasn't that loud.

My 351 straight through wasn't loud either.

I'm just worried about the environment and I can take care of my ears.. things is it's not that loud.

Anyway - in the end I'd like my car to be totally legal and engineered thats why i asked.. i was kinda hoping not to have a muffler.. I just didn't realise you need resonator as well.. this is getting expensive.

Back to hunting for that kakimoto straight thru!!!!

[Angry]

go nuts man. its only illegal if u get caught.. dont drive like a shit to attract the attention and u'll be fine.

friend of mine has lasted a week so far with a apexi super cat into a twin 3inch system straight out the back .. its loud as hell.

and i run a hi flow 3inch cat and one redback muffler.. cops dont even look at me twice

[aybee]

ive had a blitz nur, and even with a 2.5inch cat and the silincer in it, it still registered at 100dB. after 5 minutes of driving with no silincer, i would always get a bad head ache.

like cerial killer said, theres no point doing something so blatently illegal for a small gain. just install a good brand exhaust and be done with it.

[someonestolecc]

yeah thast what im thinking..

might go the dipe pipe thats already there - get the catco cat from the FS forum. Then buy a cat back kakimoto from justjap or somehing for a couple of hundred bux.

thanks for the info dudes.

[locosam]

Ive got some jap exhaust with custom piping wth no resonator. It really sucks. Since im driving in sydney, 90% of the time im stuck in traffic, or at slow speeds which = cabin drone!

Its louder than my friends s15 with Apexi N1 exhaust...

Im getting a middle muffler (resonator?) put in this week

but its wierd, after 3500rpm, the exhaust loses its drone and sounds pretty good

[someonestolecc]

yeah i hear ya.. i hate that low rpm drone.

Funny thing is i have a mate with rb20 straight through .. sounds sweet - quiet as and sounds deep and quiet at low rev, gurgly thick mid and with that little bit of RB raspiness in high.. really nice...

I also have a mate with a rb20 with kakimoto cat back (don't know about the front pipe) with cat, resonator and muffler it sounds just as good if not better.. has that nice touch of kakimoto muffler (love that sound)....

who knows!

I hope kaki's flow well - that's what ima have to pick up methinks.

[CerealKiller]

my exhaust is 3" from turbo back. Hi-flow cat, the cat back has no resonator. It's not overly loud idling but become really droney between 2K-3Krpm which is where you do majority of your driving (if it's a street car). Very annoying. The EPA test is done at about 4,500rpm from there it's not that loud - I think about the same as the engine. What exhaust do you currently run?

[pascarpo]

if anyone wants a 3" s/s exhaust either from cat or dump back give me a call on 0423084898 or email me oh they are mirror finish

[someonestolecc]

Cereal - currently my exhaust is about 2cm thick going to a 2.1cm oval shaped tip. It's made by opel sports.. err i mean the barina is sick.

The car I asked was the one on the boat which is straight through. -=> I don't wanna kill trees and kill our planet.. I take long enough showers as is so I wanted to know what the dillyo.

Guess I'm gonna have to call justjap every 2 weeks till a kakimoto cat back comes up.

Suggest any other places likely to have one?

[unwritten law]

if anyone wants a 3" s/s exhaust either from cat or dump back give me a call on 0423084898 or email me oh they are mirror finish

Are you knore's mate?