Warning re exhaust systems.

[Ixion]

OK. BRONZ has confirmed, from t he horse's mouth (specifically, land Transport NZ)

If the exhaust system is OEM factory, in good condition, then the new rule does NOT apply.

So, in effect, if the original factory zorst is fitted, it can only be failed on poor condition. Even if it made more than 100dB when new.

So, the 06 gixxers and such are good to go

Any hassle tell the tester guy to call Landtransport NZ - 04 931 8700 . Tania Luckow is the lady you want. And she has promised to pass that message on to all AVIs.

I reckon OEM zorsts are going to become a negotiable currency. If you're buying a bike with aftermarket zorst, might be wise to demand the originals as well.

(one caveat she did mention . It must be the *FACTORY* original exhaust. OSme dealers swap out the factory zorst for an aftermarket one before the bike is first sold. So the fact that "it's been like that from new" doesn't necessarily mean it is OEM . This applies in particular to Harley Davidsons, I understand. Though I've seen Suzukis advertised new with Yoshis fitted as an inducement.)

[Swoop]

OK. BRONZ has confirmed, from t he horse's mouth (specifically, land Transport NZ)

Will they put that in writing???

[madandy]

My Duke came in from the 'States and has really quiet California approved cans on. I think they have 86Db stamped on them or some low figure close to that. At 2500rpm, pr even 3500rpm, up to half throttle she's as tame as a kitten.
Fitting a de-baffle kit like those found on trademe, inside the stock cans should be ok provided the sound levels are within the accpeptable limits right?

[Ixion]

Well, they sort of have. The law specifically refers to "Modified" . problem is some AVIs haven't read it properly. If she's going to circularise the AVIs I imagine it would be in writing. Probably take a while , but, gubbermint orificaes do not move fast. So in the meantime, any hassles tell them to call Tania. They should know her already, apparently shes the "tell 'em what to do" person.

Bear in mind, the "original" means "as original". Not the original can with all the guts cut out of it. I reckon most AVIs would be wise to that.

[sAsLEX]

(one caveat she did mention . It must be the *FACTORY* original exhaust. OSme dealers swap out the factory zorst for an aftermarket one before the bike is first sold. So the fact that "it's been like that from new" doesn't necessarily mean it is OEM . This applies in particular to Harley Davidsons, I understand. Though I've seen Suzukis advertised new with Yoshis fitted as an inducement.)

So my factory 1098R with its "Factory" special version pipes will be sweet.....

[McJim]

My Duke came in from the 'States and has really quiet California approved cans on. I think they have 86Db stamped on them or some low figure close to that. At 2500rpm, pr even 3500rpm, up to half throttle she's as tame as a kitten.
Fitting a de-baffle kit like those found on trademe, inside the stock cans should be ok provided the sound levels are within the accpeptable limits right?

You'll be sweet mate - 4 stroke 2 valve twin = sound test at 2,500rpm. That's barely ticking over she'll be right!

[madandy]

If it came with a Cat it has to have a Cat in any replacement system, along with any lambda sensors.

Can you Jim2 or anyone show where that is written please.

[AllanB]

If you are purchasing new aftermarket cans ensure you are buying ones that are E approved or fitted with a db killer. This is little more that a smaller diameter tube riveted (usually) in the outlet that stirs up the flow and shuts them down a lot.
These cans will be rated at something under well under 90 db.

The db killer can be removed and re riveted in as required

Have a look here (my bike as an example) as the db killer is shown in a cut away view.
While on the site there is a good sound section where you can spend the evening listening to bikes!

http://www.scorpion-exhausts.com/Bik...3.php?model=97

If you do not have a killer on you existing cans don't panic as a muffler shop will be able to easily make one cheaply.

[HRT]

Just for the record, all the warrant stuff is online and this is what the AVI has to work off as far as exhaust rules go with regards to motorbikes: http://www.ltsa.govt.nz/certifiers/v...es-11-v3a3.pdf

There are no rules on emissions, cats, oxy sensors or the like. Just noise and smoke basically.