Quick help needed on Exhaust Q........
Thread Starter
Pro
Joined: Apr 2011
Posts: 568
Likes: 4
From: Cambridge
Quick help needed on Exhaust Q........
Hi guys,
Trying the search but no joy yet.
Could do with some quick advice as looking at this car tomorrow possibly. C5 Z06 2003 with following mods........
KOOKS LT HEADERS
KOOKS X-PIPE
BB MUFFlerS
COLD AIR INDUCTION
HALTECH AIR BRIDGE
JET CHIP II COMPUTER
Now the chap tells me that it will not pass smog in this setup so I would need to swap something out.
Can I buy a CAT that will replace something inline? I know its a bit of a daft question but I'm really new to the vette scene and have no idea of the standard CAT setup. I'd like to keep as much of the mods as possible but need to register it in my state (NV).
Any clues?
Thanks
Trying the search but no joy yet.
Could do with some quick advice as looking at this car tomorrow possibly. C5 Z06 2003 with following mods........
KOOKS LT HEADERS
KOOKS X-PIPE
BB MUFFlerS
COLD AIR INDUCTION
HALTECH AIR BRIDGE
JET CHIP II COMPUTER
Now the chap tells me that it will not pass smog in this setup so I would need to swap something out.
Can I buy a CAT that will replace something inline? I know its a bit of a daft question but I'm really new to the vette scene and have no idea of the standard CAT setup. I'd like to keep as much of the mods as possible but need to register it in my state (NV).
Any clues?
Thanks
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Don't know about the state of Nevada, but on OBDII cars the "emissions test" consists of a test computer being plugged into the OBDII port under the dash to see if the car's ECU is in a ready state for testing, and if there are any trouble codes set.
Maybe he means it won't pass visible inspection ... if they do a visual inspection in NV.
Maybe he means it won't pass visible inspection ... if they do a visual inspection in NV.
Thread Starter
Pro
Joined: Apr 2011
Posts: 568
Likes: 4
From: Cambridge
Don't know about the state of Nevada, but on OBDII cars the "emissions test" consists of a test computer being plugged into the OBDII port under the dash to see if the car's ECU is in a ready state for testing, and if there are any trouble codes set.
Maybe he means it won't pass visible inspection ... if they do a visual inspection in NV.
Maybe he means it won't pass visible inspection ... if they do a visual inspection in NV.
NV is the same with respect to OBD testing. The chap assures me it will not pass the smog in current configuration? However he is in california, which I believe is much more stringent?
Sorry for the noddy questions but as my name suggests I'm from out of country and these rules and regulations are all new to me!
thanks again.
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Thanks Zee,
NV is the same with respect to OBD testing. The chap assures me it will not pass the smog in current configuration? However he is in california, which I believe is much more stringent?
Sorry for the noddy questions but as my name suggests I'm from out of country and these rules and regulations are all new to me!
thanks again.
NV is the same with respect to OBD testing. The chap assures me it will not pass the smog in current configuration? However he is in california, which I believe is much more stringent?
Sorry for the noddy questions but as my name suggests I'm from out of country and these rules and regulations are all new to me!
thanks again.
Pro
Joined: Aug 2008
Posts: 573
Likes: 0
From: Syracuse NY
You should be able to swap in a catted x-pipe as well. Here in NY they will fail you on the visual for not having cats, but as long as you aren't throwing any codes you can pass if you find someone willing to overlook the cats. I went with a catted x-pipe to avoid the hassle with inspections. If they make you hook up to a sniffer in NV then you definitely want some cats on it.
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
LT headers are not leagal in some states like Calif--so check to see if you can run them there---also as mentioned cats in some states are just a visual inspection----In calif type states it's much stricter---You CANNOT even change or weld on the cats ( shows signs they have been replaced or altered) legally unless they are 10 years old--has been in an accident or damaged--or has failed a smog test recently-- THEN you are only allowed to use specific brands and models off their accepted list of replacements--
If you can get by with LT's and catless--you must be able to pass the "readiness tests" In Calif we are only now allowed to have one test show "NOT READY" So a re-tune or tune would be needed to disable all the related codes and tests---
ALSO your CAI must also have a CARB. certified sticker displayed under the hood for that CAI --(in calif type states )
If you can get by with LT's and catless--you must be able to pass the "readiness tests" In Calif we are only now allowed to have one test show "NOT READY" So a re-tune or tune would be needed to disable all the related codes and tests---
ALSO your CAI must also have a CARB. certified sticker displayed under the hood for that CAI --(in calif type states )
Thread Starter
Pro
Joined: Apr 2011
Posts: 568
Likes: 4
From: Cambridge
Blimey fellas this is complicated! The UK is much more straightforward in what is and what isn't allowed.
Thanks for all the replies I think I may be just about getting my head round all this now. So the LT headers run down and under the car replacing the section of exhaust which normally contains the cats? So shortys will then also have either a catted section following OR you will have an x pipe? Is that correct? Anyone got an image of the sections that make up the full exhaust?
It's immaterial for this car now anyway as the Carfax threw up something early in its life that the owner was either not aware of or was keeping to himself!
Having driven a Z yesterday I am now itching to get my hands on one, they are awesome.
Thanks again for the replies.
Thanks for all the replies I think I may be just about getting my head round all this now. So the LT headers run down and under the car replacing the section of exhaust which normally contains the cats? So shortys will then also have either a catted section following OR you will have an x pipe? Is that correct? Anyone got an image of the sections that make up the full exhaust?
It's immaterial for this car now anyway as the Carfax threw up something early in its life that the owner was either not aware of or was keeping to himself!
Having driven a Z yesterday I am now itching to get my hands on one, they are awesome.
Thanks again for the replies.
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Joined: May 2007
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Blimey fellas this is complicated! The UK is much more straightforward in what is and what isn't allowed.
Thanks for all the replies I think I may be just about getting my head round all this now. So the LT headers run down and under the car replacing the section of exhaust which normally contains the cats? So shortys will then also have either a catted section following OR you will have an x pipe? Is that correct? Anyone got an image of the sections that make up the full exhaust?
It's immaterial for this car now anyway as the Carfax threw up something early in its life that the owner was either not aware of or was keeping to himself!
Having driven a Z yesterday I am now itching to get my hands on one, they are awesome.
Thanks again for the replies.
Thanks for all the replies I think I may be just about getting my head round all this now. So the LT headers run down and under the car replacing the section of exhaust which normally contains the cats? So shortys will then also have either a catted section following OR you will have an x pipe? Is that correct? Anyone got an image of the sections that make up the full exhaust?
It's immaterial for this car now anyway as the Carfax threw up something early in its life that the owner was either not aware of or was keeping to himself!
Having driven a Z yesterday I am now itching to get my hands on one, they are awesome.
Thanks again for the replies.
Keep in mind that the vehicle has to pass the rediness codes programmed into the ECU to pass local emissions. Just because a check engine light is NOT on, doesn't mean that it will pass an emissions test. If the rediness codes show not ready (even with the check engine light off), then you will fail the test.
Bottom line is don't buy a vehicle that doesn't pass your local emissions test, and have the owner you are buying it from run the vehicle through the emisson test station before purchasing. After you buy the vehicle it is up to you to get it to pass. As always, buyer beware.
Drifting
Joined: Jan 2008
Posts: 1,722
Likes: 138
From: Florida
St. Jude Donor '09
http://www.dmvnv.com/emission.htm
Last edited by ipuig; May 8, 2011 at 05:30 PM.