noob question regarding after market exhaust - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Cyau · 06-08-2013, 05:34 PM

sorry for stupid question...

I know in order for exhaust to be legal is that it has to pass the air pollution exam (forgot the name...) also has to be 92db or lower at 5500rpm.

now my question is, for all the exhaust mentioned here, if i leave my cat on, are they all legal and able to pass those tests ?

hanabie · 06-08-2013, 06:05 PM

Keep your stock exhaust. Use it for smog. Any exhaust mod is illegal in CA, but most cops ignore that unless you have a farting can and drive like a douchebag.

hanabie · 06-08-2013, 06:06 PM

Also, there are smog places could hook u up for passing the test.

Cyau · 06-08-2013, 08:13 PM

Quote:

Originally Posted by hanabie

Also, there are smog places could hook u up for passing the test.

so even if i kept my cat on, with an after market exhaust, I'll still fail smog test ??

ProTekk · 06-08-2013, 08:34 PM

Quote:

Originally Posted by Cyau

so even if i kept my cat on, with an after market exhaust, I'll still fail smog test ??

No, you shouldn't strictly speaking on the emissions aspect. The cats are the only things that are doing any kind of "air purification," if you will. A catback would not be replacing either cat or creating any further pollution. The only thing it'll be doing is creating more noise due to the design and removal of the muffler.

Cyau · 06-09-2013, 01:35 AM

speaking of modifying exhaust being illegal in California. .. doesn't trd exhaust consider after market then. .. what makes them not illegal. ..

Tim_Asphalt_FRS · 06-09-2013, 01:58 AM

http://www.bar.ca.gov/80_BARResource...evel_Cert.html

Catbacks aren't illegal. Changing anything before the catalytic converter is.

Sent from my iPhone using Tapatalk

Cyau · 06-09-2013, 02:16 AM

Quote:

Originally Posted by Tim_Asphalt_FRS

http://www.bar.ca.gov/80_BARResource...evel_Cert.html

Catbacks aren't illegal. Changing anything before the catalytic converter is.

Sent from my iPhone using Tapatalk

wow thank you , that helped alot, now I'm confident to get an exhaust kit. while I'm at it anyone got recommendations? I'm looking at perrin right now.

i know there are already many thread about this..but just asking for more opinions

06-08-2013, 05:34 PM	#1
Cyau Senior Member Join Date: Apr 2013 Drives: UltraMarine FRS MT Location: SoCal Posts: 198 Thanks: 43 Thanked 44 Times in 28 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	noob question regarding after market exhaust sorry for stupid question... I know in order for exhaust to be legal is that it has to pass the air pollution exam (forgot the name...) also has to be 92db or lower at 5500rpm. now my question is, for all the exhaust mentioned here, if i leave my cat on, are they all legal and able to pass those tests ?

06-09-2013, 01:58 AM	#7
Tim_Asphalt_FRS Is it fast? No. Join Date: Aug 2012 Drives: 2013 Scion FR-S Manual-Asphalt Location: Vista, CA Posts: 604 Thanks: 824 Thanked 164 Times in 122 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	http://www.bar.ca.gov/80_BARResource...evel_Cert.html Catbacks aren't illegal. Changing anything before the catalytic converter is. Sent from my iPhone using Tapatalk __________________ 2013 (Rebadged) Toyota GT-86 {Perrin intake tube, aFe dry air filter, custom 2.5" exhaust, PLM overpipe, Kartboy crank pulley, Hotchkis springs, custom Flossy grip tape shorty, TRD shifter, Berk HFC, Whiteline Sway-bars} [Wanted: Delicious Stg 2 tune, Bilstein struts]

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06-08-2013, 06:05 PM	#2
hanabie Senior Member Join Date: Feb 2012 Drives: WRB LMTD '13 Location: Phillips Ranch Posts: 1,246 Thanks: 184 Thanked 242 Times in 158 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Keep your stock exhaust. Use it for smog. Any exhaust mod is illegal in CA, but most cops ignore that unless you have a farting can and drive like a douchebag.

06-08-2013, 06:06 PM	#3
hanabie Senior Member Join Date: Feb 2012 Drives: WRB LMTD '13 Location: Phillips Ranch Posts: 1,246 Thanks: 184 Thanked 242 Times in 158 Posts Mentioned: 5 Post(s) Tagged: 0 Thread(s)	Also, there are smog places could hook u up for passing the test.

06-09-2013, 01:35 AM	#6
Cyau Senior Member Join Date: Apr 2013 Drives: UltraMarine FRS MT Location: SoCal Posts: 198 Thanks: 43 Thanked 44 Times in 28 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	speaking of modifying exhaust being illegal in California. .. doesn't trd exhaust consider after market then. .. what makes them not illegal. ..

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