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VP exhaust possibly defective??

93vp1car

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Hey guys, i was pulled up the other day and told that my catback system was illegal because it only had the one muffler in the centre, knowing the cop from working at maccas he let me off and told me to get it sorted before next time....is one muffler illegal or was he bullshitting? As the shop i bought it from said it was legal, however I installed it myself. Do i need to reset my computer after this if so does anyone know how?
Also he had a good look at my cold air intake are they legal on green P's in nsw
thanks
 

mike49

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wow if this is true theres alot of defectable vn/vp's out there! lol

hope it aint true :(
 

crazybiker

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Not sure about the single muffler setup being legal or not. So no answer from me.

You wouldn't need to reset the computer though...but for future reference, if you need to, unplug the engine fuse in the engine bay for 30 seconds, plug it back in and rev the engine to 3000RPM for 30 seconds (Once it's warm).

As for the CAI? Yeah, that is illegal. ANY performance modification what-so-ever is illegal whilst on your Ps in NSW
 

93vp1car

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sweet thanks for that im just waiting for the exhaust shop to open so i can get a slip for it that i can show for the next time he pulls me up :( il just have to talk my way around my intake though they kept looking at it but didn't really say much about it haha won't tell them about the restrictor we took out of the throttle body than :) haha
 

levymetal

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i've heard that if a car came out with 2 mufflers, you must always have 2 mufflers on it. i don't believe it, but there are some stupid laws out there. of course it would be different for all states too.
 

TrikkBen

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my vs is defective ahhhhhh.. and with regard to the CAI The wording used in the P Plater book is something like "It is illegal for a p plater to modify their car in any way that increases the performance index" Therefore saying that we have to drive dead stock standard cars...
 

ducker85

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sweet thanks for that im just waiting for the exhaust shop to open so i can get a slip for it that i can show for the next time he pulls me up :( il just have to talk my way around my intake though they kept looking at it but didn't really say much about it haha won't tell them about the restrictor we took out of the throttle body than :) haha
the VN's never had that restrictor in the intake, it only stops the front cyclinders runing lean.

i've heard that if a car came out with 2 mufflers, you must always have 2 mufflers on it. i don't believe it, but there are some stupid laws out there. of course it would be different for all states too.
VP calais have like 3 mufflers stock yet any stock commodore has 2.
 

ducker85

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sweet thanks for that im just waiting for the exhaust shop to open so i can get a slip for it that i can show for the next time he pulls me up :( il just have to talk my way around my intake though they kept looking at it but didn't really say much about it haha won't tell them about the restrictor we took out of the throttle body than :) haha
the VN's never had that restrictor in the intake, it only stops the front cyclinders runing lean, n the rear rich.

i've heard that if a car came out with 2 mufflers, you must always have 2 mufflers on it. i don't believe it, but there are some stupid laws out there. of course it would be different for all states too.
VP calais have like 3 mufflers stock yet any stock commodore has 2.
 

Morton

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Hey guys, i was pulled up the other day and told that my catback system was illegal because it only had the one muffler in the centre, knowing the cop from working at maccas he let me off and told me to get it sorted before next time....is one muffler illegal or was he bullshitting? As the shop i bought it from said it was legal, however I installed it myself. Do i need to reset my computer after this if so does anyone know how?
Also he had a good look at my cold air intake are they legal on green P's in nsw
thanks
One muffler is ILLEGAL, regardless of compliance with noise emissions.

Any vehicle must retain at least the standard number of resonators/mufflers and catalytic converters at all times.

The reason Calais/Statesmans etc are found to have three mufflers, is due to the funky V8 IRS exhaust setup that runs twins for a short length. 9 times out of 10, you'll be let off for having two mufflers on a system that used to have three. Not many officers are trainspotters like that :)
 
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