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EPA - Need Std R33 GTR Exhaust - Please Help.


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I just got EPA letter within a month after purchasing my car PLUS a defective notice for being too low, and the previous owner already get rid of the standard exhaust, therefore I need to ask for help from other R33 GTR owners....

Can I please borrow your exhaust for maybe 2 or 3 days? Any help would be appreciated, and does anyone knows any EPA tester without tighta$$ attitude?

And does anyone knows how they will perform the test? I mean I know that they will put the mic around 1 m away from the muffler in 45 degree angle, but what's the rpm point when the sound is measured?

Please do help me with the exhaust. :D

Any help, please email to [email protected] or [email protected] or sms to 0403413768.

En_One, i have a GTS-t full stock system, i don't know if the cat back seciton will bolt on... i have a feeling it MAY, as i don't think nissan would reshape the sheet metal under the car between the two models. Just check with a performance shop (give gerald a call at Ice Performance 0414359888) and see. If it fits you're welcome to borrow it.

Also Daalder in Box Hill tests them and they're reasonable fellas. Talk to matt.

Originally posted by En_One

I

And does anyone knows how they will perform the test? I mean I know that they will put the mic around 1 m away from the muffler in 45 degree angle, but what's the rpm point when the sound is measured?

Well being an expert on EPA testing, they have a little triangle type stand that is made of metal tube and they rest the microphone on a little holder that is attatched to the stand 1m away. The tip of this structure is placed at your exhaust tip and the test is carried out.

Attached to the microphone is a cord whic plugs into a hand held device that reads the db level of your exhaust. The tester sits in your car and revs it to 3300rpm. When the car has reached 3300rpm the tester takes his foot off the pedal and presses a button on the hand held device to record your noise output. This test is applied three times and either averaged out, or takes your lowest db read out. Cant remember.

The inspector then looks under the bonnet, and under your car and draws a very crude map of your exhaust from the turbo (or engine for all you N/A weaklings out there :D ) on your certificate. You then pay $27.50 and either pass or fail. the max db level you are allowed is 90db. I was once told by a very reputable GTR guy, that even a TOTALLY STOCK GTR exhaust system registers 89db.

You get given the yellow copy for your own records and send the green copy (with your EPA letter) to the EPA.

If you get tested with a resinator, you have to keep that resinator on at all times. If you get caught without it there are big fines and penalities. So NO you cant JUST put a resinator on. Better to put on the stock exhaust (which is just to Farkn obvious) or do a Ross special :D

3500? A place in Footscray tested it until 4100 rpm and I got the reading of 90.5 decibel.... Which one is true? LOL if only 3500 I don't think my xhaust will be that loud. <--- sorry i mean 5100 and when I was asking them why it is 5100 they said because it is the rule for twin turbo!!!!!!!

Guest INASNT
Originally posted by En_One

mcloud? what is mcloud heuehue sorry :D  

They should put the limit higher as I think the old grumbles next door always complaining bout the noise while in fact he is deaf.......

Well when u have a full epa test u have to take your car to the epa test station in mcloud. U got charged $27 because u went to an exhaust shop and they gave u a certificate which they send to the epa.

understand??? :D

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