Jump to content
SAU Community

Golgo fails EPA noise test with flying colours!


Recommended Posts

OK - so if I had read 91dB, I would have been cross, so to prepare, I fitted a CAT (thanks Gerald) and prayed to JASMA hoping for a legal pass...

97.8dB @ 5400 rpm!

Worth doing, worth doing properly :)

I think that's something like 6x louder than it should be?

The tester liked my titanium system, didn't charge me for the test - and said come back with a stock system for a big tick.

So... does a GTST stock system fit on an R?

Anyone got a stock R system lying around?

BTW: Sounds sucky with a cat. I know what will be going back on when the test is passed. Can't take away Godzilla's fire breathing ability :(

Don't think I just smart ass, but wouldn't it be better sense to make your own and keep it. If you have been pinged for noise once and you plan on going back to original after testing, surely you can see the possibility of getting done again. So! it would make sense to have your own spare stock system hanging around.

My system finished will be 3.5 inch from wategate entry back. 3 inch dump, 1.75 from ext wastegate, then 3.5 all the way including the cat. I'm sure I won't pass noise levels with this, so I will have a 2.75 press bent system on hand for just these occassions.

Guest RedLineGTR

Yah thats cool i know what you mean but honestly 90% of the GTRs i have seen in vic have come of the boat with a aftermarket exhuast...and most people keep it on as long as they can if they get EPA'd then they will look for a stock one. OH well i'm sure it will get sorted out soon.

Also just wondering why would a importer import a container or stock exhaust they make the money with aftermarket parts thats why its sometimes hard to track them down..and with the new importing scheme less stock parts are avaliable. My 2 Cents :)

On the strength of the imports having a/mkt systems, maybe the go would be to strangle the sh1t out of the system at the end.

make up a bolt on for the rear muffler.

Drop the big 4/5 inch canon and put on a restrictive stock muffler, just for testing.

Let's be honwst, for testing nobody care about performance, just limit the noise.

Would be a lot easier than changing the whole system.

James, I understand you have a cat replacement pipe. Why not get another made with some mesh welded in and put steel wool in front of it. Will strangle hell out of it and make it quiet as hell but will be no fun to drive.

Do the testers check the system for cat etc?

Would even a basic restrictor such as this work? even out of just sheet metal.

---

| o |

---

You could just bolt in behind the cat, if it wasn't visible doubt they could tell, and it *should* quieten down the noise. Most silencers I have seen are little different that just reducing the diameter of the pipe.

Jamez..

i have the stock GTS-T system for rainy days :P and what i suggest is that you take your rear muffler out and have a pipe made up to fit the stock muffler to your existing system....

i kept my 3 1/2 inch system, simply took off the rear muffler, had an 'S' pipe made to fit the stock muffler to the 3 1/2 inch sytem, 100+ db reduced to 83db... :mad:

it takes two bolts to undo to replace the beast muffler back on...:(

and you are welcome to borrow my stock exhaust/muffler...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Latest Posts

    • Kinkstah, no, coilovers aren't illegal, especially as a bolt straight in. The illegal part will be if they're altering suspension geometry beyond factory limits, or the ride height is not legal.   Sounds like the blue slipper just didn't want to deal with any later possibility of mods appearing on the car.
    • The problem has always been that coilovers are able to be adjusted, almost at any time, to be too low. Most people who ever get/got defected for/with coilovers were actually afoul of the minimum ride height rule. So the interpretation by cops/inspectors was always that it is pointless to allow numpty to raise his coilovers and get the car inspected/cleared, then just drop them back down again as soon as they get around the corner from the inspection station.  This led to the interpretation that they were illegal unless rendered such that they can't be adjusted (ie, collars welded to the body, that sort of thing). That may or may not have ever actually been the official line, but I'm pretty sure it's not considered to be a solution these days. Coilovers themselves fall under clause 3.2 b of that manual, because they are an "installation of a variable ride height system" and they don't fit the exclusions in that clause (which point to air springs and other pneumatic adjusters). So, as per previous statements, they require engineering cert to be legal on the road. Once you have such cert, provided you do not adjust them outside the height range covered by the cert, you are OK. Without, you have an unroadworthy vehicle.
    • Here E10 is the cheapest fuel. And general advice is to not use it unless you hate your car. From what I remember it clogs up stuff in the fuel system or injectors?  With US/Canada being E10 across the board, does that mean that all fuel there is terrible?
    • Sorry, are coilovers ACTUALLY ILLEGAL in NSW? They aren't in Vic, as long as they retain 70% of stock travel and the car is above 100mm off the ground. Does NSW actually have a law making coilovers actually illegal? RWC/Blue Slip/Engineering people not knowing the actual f**king laws boils my blood. Demand them to point to the documentation that states a coilover is illegal. (it may exist in NSW ) Edit: I checked. They aren't. https://www.nsw.gov.au/sites/default/files/2021-02/RMS-infosheet-light-vehicle-modifications-manual-suspension-and-ride-height.pdf
×
×
  • Create New...