Nissan 370Z Forum  

emissions

I'm moving to Hawaii soon and wanted to know if any bolt ons such as headers or high flow cats ect would cause me to fail emissions.

Go Back   Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Intake/Exhaust


Like Tree1Likes
  • 1 Post By MaDMaXX

Reply
 
LinkBack Thread Tools Display Modes
Old 04-05-2012, 08:13 PM   #1 (permalink)
Base Member
 
Join Date: Mar 2012
Location: baltimore
Posts: 20
Drives: 09 370Z silver 6spd
Rep Power: 13
iron1mike is on a distinguished road
Default emissions

I'm moving to Hawaii soon and wanted to know if any bolt ons such as headers or high flow cats ect would cause me to fail emissions.
iron1mike is offline   Reply With Quote
Old 04-06-2012, 04:21 PM   #2 (permalink)
Enthusiast Member
 
Join Date: Jan 2012
Location: Oregon from England
Posts: 292
Drives: 350z
Rep Power: 13
MaDMaXX will become famous soon enoughMaDMaXX will become famous soon enough
Default

It depends on Hawaii's DEQ.

Other than the retarded sticker you get to put on your bodywork and spoil the car, if they use a sniffer, HFC's usually fail, headers won't make any difference, nor will the rest of the system (unless it's amazingly loud)
MaDMaXX is offline   Reply With Quote
Old 04-06-2012, 06:48 PM   #3 (permalink)
Base Member
 
Join Date: Mar 2012
Location: baltimore
Posts: 20
Drives: 09 370Z silver 6spd
Rep Power: 13
iron1mike is on a distinguished road
Default

Quote:
Originally Posted by MaDMaXX View Post
It depends on Hawaii's DEQ.

Other than the retarded sticker you get to put on your bodywork and spoil the car, if they use a sniffer, HFC's usually fail, headers won't make any difference, nor will the rest of the system (unless it's amazingly loud)
After reading your response, a quick google search indicated that Hawaii does not have an emissions check! Guess I'll be looking into resonators or long tube headers instead.
iron1mike is offline   Reply With Quote
Old 05-18-2012, 12:23 PM   #4 (permalink)
Base Member
 
kenhdcgov's Avatar
 
Join Date: Mar 2010
Location: Washington, DC
Posts: 136
Drives: 370Z, 2009, Blk, Man
Rep Power: 15
kenhdcgov is on a distinguished road
Default

Quote:
Originally Posted by iron1mike View Post
After reading your response, a quick google search indicated that Hawaii does not have an emissions check! Guess I'll be looking into resonators or long tube headers instead.

Hmmm, Interesting, especially since I have BERK HFC and got through MD
Emissions with flying colors. Not so sure regarding the impact of headers however. Break a leg in Hawaii.
__________________
DARKSDE
kenhdcgov is offline   Reply With Quote
Old 05-18-2012, 01:07 PM   #5 (permalink)
The370Z.com Sponsor
 
vividracing's Avatar
 
Join Date: Jun 2009
Location: Gilbert, AZ
Age: 38
Posts: 7,306
Drives: 350Z,370Z,GTR
Rep Power: 39
vividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond reputevividracing has a reputation beyond repute
Send a message via AIM to vividracing
Default

HFCs usually pass the sniffer test. Test pipes rarely do, although I've seen it.
__________________

Rocky @ Vivid ♦ 480.966.3040 x236 ♦ Rocky@vividracing.com
Email, PM, or call me directly for aggressive The370Z.com member pricing!!!
vividracing is offline   Reply With Quote
Old 05-18-2012, 04:29 PM   #6 (permalink)
Enthusiast Member
 
Join Date: Jun 2009
Location: Hawaii
Posts: 363
Drives: Nissan
Rep Power: 16
XLR8SN is on a distinguished road
Default

The answer is that currently we do not have a sniffer test. Though anything like suspension mods will have to pass a recon test.

The lights need to be all OEM.

If your exhaust is too loud, then more than likely eventually you will get pulled over for excessive noise or something like that.
XLR8SN is offline   Reply With Quote
Old 05-19-2012, 03:42 AM   #7 (permalink)
Enthusiast Member
 
Join Date: Jan 2012
Location: Oregon from England
Posts: 292
Drives: 350z
Rep Power: 13
MaDMaXX will become famous soon enoughMaDMaXX will become famous soon enough
Default

Quote:
Originally Posted by vividracing View Post
HFCs usually pass the sniffer test. Test pipes rarely do, although I've seen it.
Depends on the sniffer levels accepted and how many cells the HFC's are.

Typically they do not. If test pipes pass, then the accepted levels must be very low and the tune on the car very fine.
__________________
'04.5 350Z - Very Motordyne.
MaDMaXX is offline   Reply With Quote
Old 05-19-2012, 09:30 AM   #8 (permalink)
Base Member
 
kenhdcgov's Avatar
 
Join Date: Mar 2010
Location: Washington, DC
Posts: 136
Drives: 370Z, 2009, Blk, Man
Rep Power: 15
kenhdcgov is on a distinguished road
Default

Look out! Spoke with my Nissan Speed Crew & determined headers here I come! Along w/another required dyno tune!
__________________
DARKSDE
kenhdcgov is offline   Reply With Quote
Old 05-19-2012, 11:47 AM   #9 (permalink)
Track Member
 
Join Date: Nov 2010
Location: West coast
Age: 41
Posts: 560
Drives: 2010 nismo
Rep Power: 6727
seymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond repute
Default

Once you get a proper tune you'll actually run cleaner than stock even with the exhaust mods
seymore4 is offline   Reply With Quote
Old 05-19-2012, 07:48 PM   #10 (permalink)
Enthusiast Member
 
Join Date: Jan 2012
Location: Oregon from England
Posts: 292
Drives: 350z
Rep Power: 13
MaDMaXX will become famous soon enoughMaDMaXX will become famous soon enough
Default

Quote:
Originally Posted by seymore4 View Post
Once you get a proper tune you'll actually run cleaner than stock even with the exhaust mods
Yeah, not true. You'll run cleaner than you were when you were stock with the exhaust mods, but not cleaner than cats.
JamesTheBrain likes this.
__________________
'04.5 350Z - Very Motordyne.
MaDMaXX is offline   Reply With Quote
Old 05-19-2012, 07:53 PM   #11 (permalink)
Track Member
 
Join Date: Nov 2010
Location: West coast
Age: 41
Posts: 560
Drives: 2010 nismo
Rep Power: 6727
seymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond repute
Default

I'm basing that on my G35 that I ran on the rollers with the sniffer and passed emissions, they give you the print out and all the values were good.

built block, twin turbo, dual 3" exhaust from the turbos back. Just cause there are cats doesn't mean its running super clean.
seymore4 is offline   Reply With Quote
Old 05-19-2012, 08:41 PM   #12 (permalink)
Enthusiast Member
 
Join Date: Jan 2012
Location: Oregon from England
Posts: 292
Drives: 350z
Rep Power: 13
MaDMaXX will become famous soon enoughMaDMaXX will become famous soon enough
Default

Emissions requirements are not standardised, and you're right, cats don't mean super clean emissions.

But the point is, cats will always run cleaner on a like for like engine. A stock normally running engine with cats will still have lower emissions than a tuned engine without cats (at least for the emissions the cats affect )
__________________
'04.5 350Z - Very Motordyne.
MaDMaXX is offline   Reply With Quote
Old 05-19-2012, 10:03 PM   #13 (permalink)
Track Member
 
Join Date: Nov 2010
Location: West coast
Age: 41
Posts: 560
Drives: 2010 nismo
Rep Power: 6727
seymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond reputeseymore4 has a reputation beyond repute
Default

That is true
seymore4 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Maryland Emissions Testing sixpax Mid-Atlantic Region 37 03-03-2012 12:28 PM
CA Emissions mtiker Nissan 370Z General Discussions 3 02-25-2011 11:00 AM
Cali emissions Cjanik Nissan 370Z General Discussions 1 10-31-2010 02:12 PM
Question about Emissions with mods.. Nick911sc Nissan 370Z General Discussions 10 09-13-2009 08:40 PM
HFC passing emissions??? john370z Intake/Exhaust 27 07-10-2009 12:58 AM


All times are GMT -5. The time now is 09:01 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0 PL2