need a legal exhaust - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

hondaguy · 07-27-2003, 01:33 AM

ok i just got my car and the guy b4 me put a damn pep boys exhaust or something and its to damn loud.it sounds like a airplane taking off,well i was wondering what exhaust do you guys think is good and smog legal?

clean · 07-27-2003, 04:41 AM

im not in cali, but from what i know here and just about everywhere, there is no suck thing as a street legal exhaust. the law in Maine is that you can't modify your exhaust to raise the db level over stock. so basically you would have to get an exhasut that sounds exactly like stock or lower, which no aftermarket exhasut does. if you want something to not draw attention to yourself get a es oval muffler, paint it black, and get custom piping. that will look stock but still not sound it. goodluck finding what you are asking for, i don't think your gonna get it. good luck anyway and if you do find it post it.

*Jeff240sx* · 07-27-2003, 01:21 PM

There is no such thing as a smog-legal exhaust. Since every exhaust system sold is a "cat-back", you still have the catalytic convertor in place, un-touched, and it's the last line of smog defence. That means, every single exhaust on sale will be smog-legal. Noise limit legal? Thats a different question.
-Jeff

azn_romeox · 07-27-2003, 05:32 PM

When a exhaust system says 50 state compliant it means its able to pass a emissons test. That does not mean it can't get a ticket for being loud *db*
-Ron

Driftin_240sx · 07-27-2003, 05:41 PM

not that it really matters because its prolly not like this in the states... but i remembered ready somethin about noise levels from tanabe...

"There is a automobile driving law(security standard) which must be observed for driving a public road. In this law, it restricts of the neighbouring noise value of 103dB(96dB for new model cars after 1998), 90mm of the maximum car height from the ground and harmful smoke(never taking off a catalyst). The mufflers which cleared these minimum standard are generally called safety standard applicable products. On the other hand, authorized products by JASMA(Japan Automotive Muffler Association), which are generally called applicable products to automobile inspection, can be more safety because they must clear more severe standard than that of safety standard by JASMA."

david

vapor_skank · 07-27-2003, 10:28 PM

ive been worrying about having a loud exhuast too, just found this on phase2 looks pretty decent and ill probally go with this after i get my swap done. its supposed to be really quiet.

http://www.phase2motortrend.com/rsrexcat19ni.html

theres something else that caught my eye ......adjustable exhaust valve or something. o well check it out

http://www.phase2motortrend.com/jstyladconva.html

hondaguy · 07-30-2003, 01:42 PM

i need a legal one cuz cops are hella harsh around here

vapor_skank · 08-01-2003, 07:40 PM

i dont think anything after market is "legal". but if they cant tell its after market id see no reason for them to give you sh*t.

Meccathor · 08-01-2003, 09:21 PM

My Borla cat-back exhaust is pretty quiet as far as aftermarket exhausts go under 4k RPM, but when I open up my throttle it can get quite loud. Though my intake also adds to the noise. The Borla exhaust looks similar to the stock 240 exhaust too, just a little bigger. You can see a pic of it in my sig.

thx247 · 08-02-2003, 01:45 AM

This is just a very short post as Im going to bed.

In california, any exhaust is legal provided it does not touch anything on the car which is smog related, and the noise limit is not above 95dB 50 feet behind the car at 6 ft high in an open space.

Anyone gives you a ticket for anything less and they are just being an *** or they are flat wrong.

07-27-2003, 01:33 AM	#1
hondaguy Zilvia Junkie Join Date: Jan 2003 Location: salinas monterey seaside area Age: 40 Posts: 550 Trader Rating: (0) Feedback Score: 0 reviews	need a legal exhaust ok i just got my car and the guy b4 me put a damn pep boys exhaust or something and its to damn loud.it sounds like a airplane taking off,well i was wondering what exhaust do you guys think is good and smog legal?

07-27-2003, 01:21 PM	#3
Jeff240sx I hate you too... Join Date: Jul 2001 Location: Tampa, FL Age: 42 Posts: 5,828 Trader Rating: (0) Rides Gallery: Jeff240sx Feedback Score: 0 reviews	There is no such thing as a smog-legal exhaust. Since every exhaust system sold is a "cat-back", you still have the catalytic convertor in place, un-touched, and it's the last line of smog defence. That means, every single exhaust on sale will be smog-legal. Noise limit legal? Thats a different question. -Jeff __________________ Whatup?

07-30-2003, 01:42 PM	#7
hondaguy Zilvia Junkie Join Date: Jan 2003 Location: salinas monterey seaside area Age: 40 Posts: 550 Trader Rating: (0) Feedback Score: 0 reviews	thanks i need a legal one cuz cops are hella harsh around here

08-01-2003, 09:21 PM	#9
Meccathor Join Date: Dec 2002 Location: Pittsburgh, PA Age: 40 Posts: 33 Trader Rating: (0) Feedback Score: 0 reviews	My Borla cat-back exhaust is pretty quiet as far as aftermarket exhausts go under 4k RPM, but when I open up my throttle it can get quite loud. Though my intake also adds to the noise. The Borla exhaust looks similar to the stock 240 exhaust too, just a little bigger. You can see a pic of it in my sig. __________________ '91 240sx 5-speed Coupe Mods: Injen Short Ram Intake, Borla Cat-back Exhaust

07-27-2003, 04:41 AM	#2
clean Zilvia Junkie Join Date: Feb 2003 Location: nowhere Age: 44 Posts: 473 Trader Rating: (0) Feedback Score: 0 reviews	im not in cali, but from what i know here and just about everywhere, there is no suck thing as a street legal exhaust. the law in Maine is that you can't modify your exhaust to raise the db level over stock. so basically you would have to get an exhasut that sounds exactly like stock or lower, which no aftermarket exhasut does. if you want something to not draw attention to yourself get a es oval muffler, paint it black, and get custom piping. that will look stock but still not sound it. goodluck finding what you are asking for, i don't think your gonna get it. good luck anyway and if you do find it post it.

07-27-2003, 05:32 PM	#4
azn_romeox Zilvia Member Join Date: Nov 2002 Posts: 288 Trader Rating: (0) Feedback Score: 0 reviews	When a exhaust system says 50 state compliant it means its able to pass a emissons test. That does not mean it can't get a ticket for being loud db -Ron

07-27-2003, 05:41 PM	#5
Driftin_240sx Zilvia Junkie Join Date: Sep 2002 Location: St. Petersburg, FL Age: 42 Posts: 515 Trader Rating: (1) Feedback Score: 1 reviews	not that it really matters because its prolly not like this in the states... but i remembered ready somethin about noise levels from tanabe... "There is a automobile driving law(security standard) which must be observed for driving a public road. In this law, it restricts of the neighbouring noise value of 103dB(96dB for new model cars after 1998), 90mm of the maximum car height from the ground and harmful smoke(never taking off a catalyst). The mufflers which cleared these minimum standard are generally called safety standard applicable products. On the other hand, authorized products by JASMA(Japan Automotive Muffler Association), which are generally called applicable products to automobile inspection, can be more safety because they must clear more severe standard than that of safety standard by JASMA." david

07-27-2003, 10:28 PM	#6
vapor_skank Zilvia Member Join Date: Nov 2002 Location: San Diego Age: 37 Posts: 165 Trader Rating: (0) Feedback Score: 0 reviews	ive been worrying about having a loud exhuast too, just found this on phase2 looks pretty decent and ill probally go with this after i get my swap done. its supposed to be really quiet. http://www.phase2motortrend.com/rsrexcat19ni.html theres something else that caught my eye ......adjustable exhaust valve or something. o well check it out http://www.phase2motortrend.com/jstyladconva.html

08-01-2003, 07:40 PM	#8
vapor_skank Zilvia Member Join Date: Nov 2002 Location: San Diego Age: 37 Posts: 165 Trader Rating: (0) Feedback Score: 0 reviews	i dont think anything after market is "legal". but if they cant tell its after market id see no reason for them to give you sh*t.

08-02-2003, 01:45 AM	#10
thx247 Zilvia FREAK! Join Date: Jan 2003 Location: bay area Posts: 1,455 Trader Rating: (0) Feedback Score: 0 reviews	This is just a very short post as Im going to bed. In california, any exhaust is legal provided it does not touch anything on the car which is smog related, and the noise limit is not above 95dB 50 feet behind the car at 6 ft high in an open space. Anyone gives you a ticket for anything less and they are just being an *** or they are flat wrong.