50-state legal !?

[userx]

Hi,every one

I am in LA califonia,and my car is 1995 240sx (KA).Cops here hate big muffler I think,so I need to buy one that is 50-state legal. +_+

Does anyone have a list of those 50-state legal cat back?

Thanks!

[w1ngzer0]

sorry but there is 0 CARB legal exhausts posted by the state of california. Your out of luck if you don't own a 98 240sx.

If your in california the best thing to do is buy a 300zx unforunitly. Untill they come out with a hydrogen conversion your out of luck

[Nismo_Freak]

sorry but there is 0 CARB legal exhausts posted by the state of california. Your out of luck if you don't own a 98 240sx.

If your in california the best thing to do is buy a 300zx unforunitly. Untill they come out with a hydrogen conversion your out of luck

Eh? ...

The exhaust just needs to meet your local sound level requirements. An exhaust is allowed by all 50 states as far as I know.

[w1ngzer0]

I got it right off their carb website. And in california its more then just "sound". On their tuner website. They posted "A lot of owners may meet the sound requirement but don't meet the emitions part".

[[Zero-S]]

Since when does a catback (you know...comes after all the emissions garbage) have anything to do with emissions?

Header-back, yes, thats understandable.

[w1ngzer0]

Since when does a catback (you know...comes after all the emissions garbage) have anything to do with emissions?

Header-back, yes, thats understandable.

Welcome to california

[kamikazestorm420]

california has 2 laws.

1) its too loud

and

2) any MODIFICATION to the exhaust is illegal.

[Rockenreno]

2) any MODIFICATION to the exhaust is illegal.

Wrong.

CA. V.C. 27151 No person shall modify the exhaust system of a motor vehicle in a manner which will amplify or increase the noise emitted by the motor of such vehicle so that the vehicle is not in compliance with the provisions of Section 27150 or exceeds the noise limits established for the type of vehicle in Article 2.5(commencing with Section 27200) of this chapter. No person shall operate a motor vehicle with an exhaust system so modified.

CA. V.C. 27150 (a) Every motor vehicle subject to registration shall be equipped with an adequate muffler in constant operation and properly maintained to prevent any excessive or unusual noise, and no muffler or exhaust system shall be equipped with a cutout, bypass, or similar device.

CCR 1036 Passenger Cars and Light Trucks and Buses

Exhaust systems for motor vehicles, other than motorcycles, gross vehicle weight rating of less than 6,000 LB (2,722 kg) shall comply with the specified noise limits when tested in accordance with the following specifications:

(a) Measuring Site. The vehicle under test shall be positioned either on outdoor pavement or on a shop floor ( but not over a hoist or pit) in a location where the exhaust outlets are near an open shop door. No sound-reflecting surface other than the pavement and the vehicle being measured shall be within 10 ft (3.0m) of any part of the vehicle.

The testing is done in an environment in which there is minimal sound contamination. Please note that there is nothing stating highways or other public roads as being an exception to this criterion.

(b) Microphone Location. The microphone for the sound level meter shall be at the same height as the center of the exhaust outlet. The microphone shall be no closer to the pavement than 8 in. (203mm) when the exhaust outlet is lower than this height. The microphone shall be positioned with its longitudinal axis parallel to the ground, 20 inches plus or minus 1 inch (508mm plus or minus 24mm) from the nearest edge of the exhaust outlet, and 45 degrees plus or minus 10 degrees from the axis of the outlet. For exhaust outlets located under the vehicle body, the microphone shall be located at the specified angle and at least 8 in., (203mm) from the nearest part of the vehicle. For exhaust outlets that make an angle of 45 degree or less with the longitudinal axis of the vehicle, the microphone shall be outboard of the exhaust axis. For exhaust outlet angles of more than 45 degrees, the microphone shall be on the side of the exhaust axis to the rear of the vehicle.

This denotes where the sound measuring device is relatively close to the exhaust outlet. Notice that it does not make any references to provisions for sound level testing done from distances greater than 21 inches. <

(c) Engine Operation. The engine shall be at a normal running temperature with the transmission in neutral. System sound level measurements conducted for certification by exhaust manufacturers shall be made at an average steady-state engine speed of three-quarters of maximum rpm. Sound level measurements conducted by licensed muffler certification stations shall be made at an average steady-state engine speed of 3,000 rpm for vehicles manufactured before 1972 for which the station does not have a maximum rpm data.

Please notice that the engine is supposed to be running and the law has no provisions for parked vehicles. Note that the certification can be done by the manufacturer of the exhaust system. There is no requirement that the manufacturer sound test each individual vehicle. Re: "licensed muffler certification stations," the letter from the California Highway Patrol file Number 60.A9190.A9181.062.9610186 states in the third paragraph that these facilities were canceled in 1978 due to budgetary cut-backs.

(d) Exhaust Sound Level Measurement. The recorded exhaust system sound level of a stationary vehicle shall be the highest reading obtained during the test, disregarding unrelated peaks due to extraneous ambient noise. When there is more than one exhaust outlet, the reported sound level shall be for the loudest outlet. When there are two or more exhaust outlets separated by less than 12 in. (305mm), measurements shall be made on the outlet closest to the side or rear of the vehicle. (Figure 4). The sound level for the motor vehicles with the manufacturers' gross vehicle ratings of less than 6,000 LB (2,722 kg) except motorcycles, shall not exceed the following limit:

The statement stating extraneous ambient noise refers to noise coming from places other than the exhaust. For this reason, testing cannot be done in a sound-contaminated environment. It would be logical that a roadside or a highway would be a sound-contaminated environment.

(1) Sound Level Limit. The exhaust noise shall not exceed 95 dB(A).

This is very straightforward and should leave nothing to interpretation.

(2) Exemption. The exhaust noise of vehicles manufactured after 1967 may exceed 95 dB(A) if the replacement parts are no louder than the original equipment or "factory duplicate" system and the total sound level of the vehicle when tested in accordance with Sections 1040 through 1049 of this title complies with the limits in Vehicle Code Section 27205 for the year of manufacture of that vehicle.

Also check out this CHP bulliten.

[BuudWeizErr]

if you have a 240 in LA area with an exhaust, you will get pulled over and they will mess with you. you will be popping your hood, etc etc, and you will probably get a ticket for it regardless.

find something else on your car to modify.

[w1ngzer0]

lol yep. These boys are from california they know. I use to be from sacramento i know exactly how it is

[mrflip69]

Cat-back exhaust shouldn't mess with your tailpipe emissions. If you ever get pulled over and ticketed for a noisy exhaust, you can take your car to the referee to have a specific decibel test (95db) performed, and if you pass, they will give you a certificate of complying with state regulations and your ticket/fines will be written off, and you'll have the nifty certificate to protect you anytime you get pulled over for exhaust noise.

Unfortunately you can only get the certificate if you get ticketed for now. It's a relatively new law so give it some time. So far it's a success.

Also, officers aren't required to have a decibel meter. The vehicle code was ammended so you can be pulled over and ticketed for noise, based on the officer's "judgement."

If you're still worried, Greddy makes a CARB legal exhaust for the 95-98 240sx

Rockenreno got it right.

[mrflip69]

I got it right off their carb website. And in california its more then just "sound". On their tuner website. They posted "A lot of owners may meet the sound requirement but don't meet the emitions part".

`` Exhaust systems which meet smog requirements but are still too loud. Exhaust equipment that states it is, "Legal in all 50 states," refers to smog, not noise. ``

http://www.chp.ca.gov/html/streetlegal.html

If any modification to exhaust is illegal, how would all the muffler shops do business? Strictly selling/installing OEM?

[KDashy]

Right, if there aren't any sensors there, the exaust after the cat can be modded, as long as it meets the decibel requirements.

[w1ngzer0]

ops. I got it in reverse :bash

[GEO]

The Apexi N1 is 50 state legal

http://www.apexi-usa.com/produ...n.pdf

[hamsterball]

Hrm.. you know what. Even if it is technically legal to have an exhaust that does not go past the sound requirement (in db), you will still have cops pull you over.(I mean, they have the right of suspicion, and can suspect ANY aftermarket exhaust if they want).

Why deal with the trouble. I think you should just get custom piping to a stock muffler or better yet.

RS*R EX-MAG EXHAUST. With the chrome tip painted flat black.

Good luck.

[userx]

Looks like everything is illegal here...But I do saw a lot 240sx with aftermarket exhaust system on the street... -_-

Anyway thanks to all of you guys,appreciated!

[BuudWeizErr]

Looks like everything is illegal here...But I do saw a lot 240sx with aftermarket exhaust system on the street... -_-

Anyway thanks to all of you guys,appreciated!

of course... lots of us run with them... just don't come crying to us for comfort after we've already told you that johnny law does not like modded exhausts.

[Anand]

you will get pulled over for a modded exhaust.... sooner or later! belive me.....

[drifter_for_life06]

check out the new exhaust J-SpecTuner got.