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Thread: exhaust cats headers -legal ? suspension lowered -legal ?

  1. #1
    BOSSVY is offline Occasional Contributor to the Forums Last Online: 30-07-2013 @ 10:17 PM
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    exhaust cats headers -legal ? suspension lowered -legal ?

    so my ute (03 vy ss ) has an exhaust , extractors, cats 100cpi , otrcai ,maffless tune (otrcai and maffless will be soon ) and has also been lowered 2 inches , ive never actually stopped and asked or thought if these mods are legal ! so thats my question are these mods that have been done legal ??

    cheers

  2. #2
    Toddler78's Avatar
    Toddler78 is offline Considerable Contributor to the Forum Last Online: 07-06-2025 @ 08:13 PM
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    No and no


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    I'm not a hoon, I'm just competitive

  3. #3
    BOSSVY is offline Occasional Contributor to the Forums Last Online: 30-07-2013 @ 10:17 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    Quote Originally Posted by Toddler78 View Post
    No and no


    iPhone
    so if my cars stolen crashed or otherwise damaged , insurance could reject claim as these are illegal ??

    really illegal how does everyone on here get away with it ??

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    mattnsw is offline Occasional Contributor to the Forums Last Online: 17-11-2016 @ 05:24 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    Quote Originally Posted by vz05ss View Post
    so if my cars stolen crashed or otherwise damaged , insurance could reject claim as these are illegal ??

    really illegal how does everyone on here get away with it ??


    They don’t care, as has been discussed many times before.

  5. #5
    Toddler78's Avatar
    Toddler78 is offline Considerable Contributor to the Forum Last Online: 07-06-2025 @ 08:13 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    Quote Originally Posted by vz05ss View Post
    so if my cars stolen crashed or otherwise damaged , insurance could reject claim as these are illegal ??

    really illegal how does everyone on here get away with it ??

    sorry now that I'm on a computer I will eloborate, If the car is stolen then insurance arnt going to know what is on the car, unless you try and claim it. If you let your insurance know then you should be fine, however you illegal modification directly effects the car and causes a crash then yes they can and will void insurance. i regards to being lowered, every state is different so you could be ok. In regards to the exhaust and cats they are illegal because they would not meet emissions and would probably not pass the noise test
    I'm not a hoon, I'm just competitive

  6. #6
    BOSSVY is offline Occasional Contributor to the Forums Last Online: 30-07-2013 @ 10:17 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    Quote Originally Posted by Toddler78 View Post
    sorry now that I'm on a computer I will eloborate, If the car is stolen then insurance arnt going to know what is on the car, unless you try and claim it. If you let your insurance know then you should be fine, however you illegal modification directly effects the car and causes a crash then yes they can and will void insurance. i regards to being lowered, every state is different so you could be ok. In regards to the exhaust and cats they are illegal because they would not meet emissions and would probably not pass the noise test
    thx 4 elaborating , if car is stolen and not found sure they wont know , but if car is stolen and found they will know . yeh i have let them know and they said as long as its all legal . so exhaust cats headers are all illegal regardless of size ?? or is it more noise /emissions ?? anywhere you know i can vheck for lowering limit ??

    might be worth while contacting an engineer getting it all done then im sweet ??

  7. #7
    BOSSVY is offline Occasional Contributor to the Forums Last Online: 30-07-2013 @ 10:17 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    Quote Originally Posted by mattnsw View Post
    They don’t care, as has been discussed many times before.
    whate are u following me around now with your posting of nothing at all in anyway helping the topic other than complaining ??? if you don tlike it or its repeated save your precious time and dont read my posts type a response to my posts or otherwise ........ seriously !!!!!!!!

  8. #8
    Nutter is offline Permanently Banned Last Online: 26-01-2013 @ 12:04 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    The regs are changing as we speak, most people don't actually know what is truly legal...one of the most common things I hear over the years for example in regards to lowering is that 100mm is the minimum allowed and whilst police generally go by this its completely wrong and varies from car to car. Checked the links below for a better understanding.

    http://www.infrastructure.gov.au/roa.../vsb_ncop.aspx

    http://www.infrastructure.gov.au/roa...ent/index.aspx

  9. #9
    Wonky's Avatar
    Wonky is offline One of the Top Contributors to the Forum Last Online: 07-05-2025 @ 10:41 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    Interesting thanks Nutter. If I read NCOP11 correctly then in Vic we are able to lower (or raise) a vehicle by up to 50mm if that's also within 1/3 of the vehicle's original suspension travel. As you say, no reference to 100mm minimum height allowed. I did see reference to airbag suspension needing certification but nothing I could see on coilovers???

    To the OP, I had to take my heavily modified ute in to an AAMI assessment centre after an at fault claim early last year involving another vehicle (minor damage to both but given the other was an older Barina I wouldn't be surprised if it was written off). My mods are all listed on the policy and the guy didn't look twice, maybe coz I'm a disabled old fart. Still, that seems to be the same as most people have found with claims on their modded vehicles, but doesn't mean everybody will be the same if you write off a Ferrari or the insurer is looking to reduce payouts.
    Last edited by Wonky; 19-07-2012 at 12:36 AM.

  10. #10
    Nutter is offline Permanently Banned Last Online: 26-01-2013 @ 12:04 PM
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    In Victoria under the old rules (i think it was vsi module 8 or something like that on the vic roads site) the 1/3 rule always applied anyway so on most cars even where a 50mm drop gave more than 100 mm clearance it was still illegal, but the old rules also had a formula based on wheelbase that also had to be included, as well as a different height allowed fore and aft the axles and just to make it worse there was also regulations regarding deflated tyres so in the instance a blow out occurred the lowest point again had to keep clear of contact with the road, this also applies to people using smaller diameter rims on cars not released for them for example running 15 stockies on a car released with say 19s.

    I guess the upsides off the 100mm rule that everyone went by meant if you got pulled over and they ran the test wheel stick under they wouldn't Canary you even if your car was on on near the bump stops and bounced all over the road, the downside is for example the engine cross member might be under 100mm and you would get canaries even though it's directly in line with the front axle line and usually wouldn't hit the ground.

    I've been pulled over In so many of my cars by standard patrol cars and TOG and they only ever went by the 100mm rule, I don't know if the TOG is trained in the details or if they just use that generic rule, I know there's a couple of uniformed guys on here they may want to pipe in?

    The problem with insurance companies is exactly as you say hitting a barina they may not care, run of the road into a building and cause a million dollars damage and suddenly they do care and inform you your cars not covered.

    Even things like extractors, cats, exhaust are commonly misunderstood, for example most people assume if the car reads legal for exhaust noise its all good... But if the officer canaries you and sends you to do a full epa test it may fail due to emissions changes caused by the now different fuel ratios that typically slightly change after the exhaust restriction has been reduced (on a side note cars built after November 83 I think it was have to be quieter than cars built previously).

    How many people know that getting the car tuned is an epa issue unless you pay for and pass the very expensive and hard required tests?

    It's a risk you run, really the only safe way from an insurance point of view is a stock car that's kept mechanically perfect.

    HTC One XL 2
    Last edited by Nutter; 19-07-2012 at 01:22 AM.

  11. #11
    Nutter is offline Permanently Banned Last Online: 26-01-2013 @ 12:04 PM
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    In regards to coil overs wonky I would assume the allowed increase or decrease in height would still be based on the original equipments standard height and travel, but I've been wrong before.

    Quote Originally Posted by vz05ss View Post
    whate are u following me around now with your posting of nothing at all in anyway helping the topic other than complaining ??? if you don tlike it or its repeated save your precious time and dont read my posts type a response to my posts or otherwise ........ seriously !!!!!!!!
    Welcome to automotive forums In 2012, just about everything has been done or discussed before so now you just cop shit because people are bored and don't have anything else to read.... Isn't it great?


    Also I just want to say I'm probably a lot rusty and may have forgotten or incorrectly stated info in the post above as I'm not really that brushed up on all the regs anymore.

    HTC One XL 2
    Last edited by Nutter; 19-07-2012 at 01:38 AM.

  12. #12
    mattnsw is offline Occasional Contributor to the Forums Last Online: 17-11-2016 @ 05:24 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    Quote Originally Posted by vz05ss View Post
    whate are u following me around now with your posting of nothing at all in anyway helping the topic other than complaining ??? if you don tlike it or its repeated save your precious time and dont read my posts type a response to my posts or otherwise ........ seriously !!!!!!!!
    Don’t have to follow you, you’re everywhere.

    If you were serious about this subject you’d be talking to your local road regulation authorities and your insurance company getting the correct info first and passing it on to the forum members. Not seeking important legal advice from people who you don’t know if what they tell you is correct or not. I for one would want my info from those who enforce it.

    If you were interested you’d have done a simple search on of this forum for ‘Illegal Mods’ and a multitude of threads would have presented themselves including the recent epics from member ‘Doco’ who took the time to accumulate a lot of info from registration authorities, insurance companies and complying engineers.
    You could have easily added to a number of them. They are only a month or so old.

    Where have all the threads on cars gone?
    Where has all the write ups from the sponsors gone?
    Where have the members who push the boundaries gone?

    They ran away when cheap LS1 powered cars brought the know all argumentative SC type crowd here.

    Is this the future of LS1?
    What exhaust, what exhaust, what exhaust, what exhaust?
    Abuse, abuse, abuse?

    How about adding to existing discussions instead of starting them all over again.

    Obviously this it a great thread as the members are climbing over each other to get involved.
    Last edited by mattnsw; 19-07-2012 at 02:37 AM.

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    Nutter is offline Permanently Banned Last Online: 26-01-2013 @ 12:04 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    I feel another thread where someone is for an argument has begun, im just going to put my suit on get in my
    and wait for the party to start and once it's all over and everyone's testorene has recided ill get out my


    .
    Is it really that hard to play nice these kids?

  14. #14
    dazzrael is offline Forum Contributor Last Online: 02-02-2015 @ 12:45 PM
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    Re: exhaust cats headers -legal ? suspension lowered -legal ?

    Dont feed the trolls!!!!

  15. #15
    Nutter is offline Permanently Banned Last Online: 26-01-2013 @ 12:04 PM
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    But they're so cute and dim witted im worried they'd be bored and have to get lives if they didn't go through every post ever done and make sure we all know.... That's what forums are for right? No individual questions are required you could just make your assumptions based on any one of the hundreds of previous and possibly unrelated and possibly out dated posts, who needs current information regarding the law anyway?

    The best part is if you grave dig an old thread you get the other half giving you shit for reviving old info...... Yep I can see why people who haven't been on here forever make these mistakes.

    HTC One XL 2

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