I dont know if its any different. But in the State rally they test your exhaust dB, and hold the dB meter about 20cm from your exhaust tip and rev it to 6000RPM. There meters also test emission.
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I dont know if its any different. But in the State rally they test your exhaust dB, and hold the dB meter about 20cm from your exhaust tip and rev it to 6000RPM. There meters also test emission.
When i got my catback they (dalda exhaust- box hill-vic) tested the Db....cant remember what number i got...but it was below 90.
What mods did you have on your car, VTEC16?
hehe.. my last exhaust system on my wrx was measured at 125DB, w00t! :D
anyway, I heard dick smith sells db meters for like $80 or so, I think. might pay to go check it out
I had my exhaust tested for an engineer certificate and it was 120db at 3500 revs! i would love to see wat it is whislt in vtec! i used a baffler to pass the test, then took it off! but from wat i have heard they r now illegal because it has to be welded on!
just the 2.25" piping with a lukey "style" muffler.Quote:
Originally Posted by XXpl0Sive
corect. they're getting smarter by the day. if ur muffler has a hole for the silencer, the only way they will pass it is by welding on the silencer asa permanent fix so u can't just put it on to test, pass, then put it back on and drive away.
Most blue slip places dont really care if the baffler is permanet or not usually only exhaust places reject it!
It really depends on which blue slip place you go. My advice, if you've got mods, go west.
I would of passed easily if I could be bothered driving, instead I took it to the closest place near me, and the mechanic had not done a small car before, he was a 4wd specialist, so he was doing my check "by the book"..
ben u need a pick slip?
i can get sum1 who will do it for ya..
my car is under 90db Ben.
I think they rev it @ 1/2 or 2/3 of your car's peak power from factory.
Testing needs to be done in I think a 3m by 3m square with the db meter @ a 45 degree angle.
I got the PDF of ADR procedure on measuring exhaust noise somewhere.
mate just get a 'rego muffler', will cost ya like $150 or so but that puny little restrictive thing will make sure you are under 90dB :)
Its basically tiny piping that bolts up to wherever your closest flange to the rear is, and a very restrictive muffler. Havent heard of any car fail with one on yet, and tons of them have been done by noe exhaust place i know.