[ins0mnia24]

Originally Posted by jims69camaro

federal guidelines:
(1) Any such vehicle manufactured before
January 1, 1973 ........................................... 92 dBA
(2) Any such vehicle manufactured on or after
January 1, 1973, and before January 1, 1975 ..... 88 dBA
(3) Any such vehicle manufactured on or after
January 1, 1975, and before January 1, 1986 ..... 86 dBA
(4) Any such vehicle manufactured on or after
January 1, 1986 ............................................ 82 dBA

current NJ law:
N.J. Stat. @ 39:3-70 (2002)

@ 39:3-70. [Mufflers]

Every motor vehicle having a combustion motor shall at all times be equipped
with a [muffler] in good working order and in constant operation to prevent
[excessive or unusual noise and] annoying smoke, AND NO PERSON SHALL MODIFY THE EXHAUST SYSTEM OF A MOTOR VEHICLE IN A MANNER SO THAT THE EXHAUST SYSTEM EMITS IN EXCESS OF NINETY-FIVE DECIBELS AS MEASURED BY THE SOCIETY OF AUTOMOTIVE ENGINEERS (SAE) STANDARD J1169 ( May 1998 ). IT SHALL NOT BE A VIOLATION OF THIS SUBSECTION UNLESS PROVEN BY PROPER AUTHORITIES THAT THE EXHAUST SYTEM MODIFICATION RESULTS IN NOISE AMPLIFICATION IN EXCESS OF NINETY-FIVE DECIBELS UNDER THE PRESCRIBED SAE TEST STANDARD.

A COURT MAY DISMISS ANY ACTION FOR WHICH A PERSON IS PROSECUTED FOR OPERATING A VEHICLE IN VIOLATION OF THIS SUBSECTION IF IT IS FOUND THAT THE DEFENDANT HAD REASONABLE GROUNDS TO BELIEVE THAT THE VEHICLE WAS NOT OPERATED IN VIOLATION OF THIS SUBSECTION.

[and] n No person shall use a [muffler] cut-out, bypass or similar device upon a motor vehicle on a highway.

alrighty, then. take this with you to the inspection station and request the test.

Been there and done that last May as I tried to explain to Demonicbird last month on here..
If the inspection station doesnt have a d.b. meter they can not fail you because they have no proof or evidence of your exhaust d.b. level..
My car has a cam/heads QTP headers and Loudmouth 1 and they failed me..
I printed that out and after 2 minutes of debate with the inspection station manager they passed me through with a sticker because the station didnt even have a d.b. meter...