Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Exhaust questions

Thread Tools
 
Search this Thread
 
Old Nov 20, 2005 | 11:29 PM
  #1  
radcliffe18's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2005
Posts: 74
Likes: 0
Default Exhaust questions

I'm in the process of buying headers and a y-pipe, i decided on going with Pacesetter headers and TSP y-pipe, but my question is about the AIR, EGR, and 02 sensors. Should I delete both the AIR and EGR? I have no clue what to do abut the 02 sensors, do i get extensions? do i delete them? and how do i delete them if yes? Thanks
Reply
Old Nov 21, 2005 | 12:27 AM
  #2  
NBMgreg's Avatar
Banned
iTrader: (7)
 
Joined: Sep 2005
Posts: 112
Likes: 0
From: PHX az
Default

i am in the same situation as you are, about to buy headers and probably going with pacesetters, after researching alot ive found that if you get their "race" headers, you will have to remove your EGR and AIR, and you have to delete your rear o2 sensors... as for the front o2's, i believe they make o2 extensions for the fronts. after installing your headers you will have codes thrown from these components you have removed, none of which will affect performance. in order to delete these codes you need to have somebody hook up your ecu with a tuning device and delete these codes so you can pass emissions.
Reply
Old Nov 21, 2005 | 12:28 AM
  #3  
NBMgreg's Avatar
Banned
iTrader: (7)
 
Joined: Sep 2005
Posts: 112
Likes: 0
From: PHX az
Default

on a side note, i do believe pacesetter sells an emission savvy header that comes with the EGR and AIR hookups.
Reply
Old Nov 21, 2005 | 12:36 AM
  #4  
WS6 Kid's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2004
Posts: 554
Likes: 0
From: Riverside, CA
Default

If you buy LT's then you need to extend the front 02 sensors and delete the rears altogether. If you chose to go with LT's be prepared to get a tune; it is mandatory .for any real performance gain. As far as AIR and EGR...really depends on if your trying to stay "legal" or not.

Im not sure where you are but here in CA, even LT's are illegal, so when i did it, i went all the way by deleting AIR and running !cats. As far as EGR goes, I'd delete it if I were you, same goes for AIR: If you choose to go with LT's.
Reply
Old Nov 21, 2005 | 11:08 AM
  #5  
radcliffe18's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2005
Posts: 74
Likes: 0
Default

how do you delete the rear o2 sensors?
Reply
Old Nov 21, 2005 | 11:44 AM
  #6  
WS6 Kid's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2004
Posts: 554
Likes: 0
From: Riverside, CA
Default

Thats gonna be part of the tune, or you could run o2 sims
Reply
Old Nov 21, 2005 | 12:32 PM
  #7  
NBMgreg's Avatar
Banned
iTrader: (7)
 
Joined: Sep 2005
Posts: 112
Likes: 0
From: PHX az
Default

ya, but ive heard things about the o2 simms, about them not working, and what not... i would recommend just getting it tuned. just a basic tune shouldnt cost that much, a local guy here is going to do mine for 75$ that consists of deleted codes, deleted o2's, adjusting thermostat and a few other small things.

hey ws6 kid, do you know if there is a difference in "race" long tubes, and "emission" long tubes, i know they both arent "legal" but im thinking of just getting the emissions headers so i dont have to rip out my EGR and AIR, but is there a loss in performance between the race and emissions headers?
Reply
Old Nov 21, 2005 | 12:45 PM
  #8  
WS6 Kid's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2004
Posts: 554
Likes: 0
From: Riverside, CA
Default

Originally Posted by NBMgreg
ya, but ive heard things about the o2 simms, about them not working, and what not... i would recommend just getting it tuned. just a basic tune shouldnt cost that much, a local guy here is going to do mine for 75$ that consists of deleted codes, deleted o2's, adjusting thermostat and a few other small things.

hey ws6 kid, do you know if there is a difference in "race" long tubes, and "emission" long tubes, i know they both arent "legal" but im thinking of just getting the emissions headers so i dont have to rip out my EGR and AIR, but is there a loss in performance between the race and emissions headers?
I dont think the diff. in performance is really an issue...its mainly whether or not you want to keep emissions hardware. AIR is mainly for the cats so if you arent gonna run cats there's no reason to keep AIR. I would just lose EGR period; i mean if your gonna be doing LTs why not go all the way?

Not to mention the engine bay looks soo much nicer without those two
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Nov 21, 2005 | 12:48 PM
  #9  
NBMgreg's Avatar
Banned
iTrader: (7)
 
Joined: Sep 2005
Posts: 112
Likes: 0
From: PHX az
Default

well i was intending on keeping these systems just to keep the emissions people out of my hair, i already have to worry about them not finding my cats, let alone my EGR and AIR, and plus im trying to stay away from getting fined out my ***, you know? after researching alittle, i think i just might remove my AIR but keep my EGR
Reply
Old Nov 21, 2005 | 12:56 PM
  #10  
WS6 Kid's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2004
Posts: 554
Likes: 0
From: Riverside, CA
Default

Originally Posted by NBMgreg
well i was intending on keeping these systems just to keep the emissions people out of my hair, i already have to worry about them not finding my cats, let alone my EGR and AIR, and plus im trying to stay away from getting fined out my ***, you know? after researching alittle, i think i just might remove my AIR but keep my EGR
I think the !cats is gonna be your biggest prob with emission folks. The smeel and the sound are gonna be much more noticeable than an emission system that they wont even recognize is not there by looking. If it were me; id go all the way legal, or all the way illegal.
Reply
Old Nov 21, 2005 | 01:08 PM
  #11  
NBMgreg's Avatar
Banned
iTrader: (7)
 
Joined: Sep 2005
Posts: 112
Likes: 0
From: PHX az
Default

do you have emissons where your at? did they look under your car? cuz i think for the visual i might just wrap some cat shells around my pipe or something similar, just to make it look like i have something there. and about the EGR and AIR, everybody says remove them, it will be worth it in the end... man i hate making decissions!!!!
Reply
Old Nov 21, 2005 | 01:18 PM
  #12  
WS6 Kid's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2004
Posts: 554
Likes: 0
From: Riverside, CA
Default

There are emissions where im at so i just got a smog right before i changed anything; that way im good for at least two years. Where i am, there's a sniffer and a visual so the faux cats wouldnt work for me, but it may be worth a try. I figured it might possibly save me if a cop were to look under my car, but after hearing my car and smelling it, it might not even be worth it.

Id say forget AIR and EGR both. If you want to stay somewhat legal, get a catted Y pipe. Personally, I would recommend that you ditch all emissions sytems, get an ORY, and have a badass sounding beast that can make small children dizzy from the fumes
Reply
Old Nov 21, 2005 | 04:40 PM
  #13  
radcliffe18's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2005
Posts: 74
Likes: 0
Default

ok if i delete my 02 sensors, do i cut them off or tape them up or what?
Reply
Old Nov 21, 2005 | 05:39 PM
  #14  
WS6 Kid's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2004
Posts: 554
Likes: 0
From: Riverside, CA
Default

Well, when i did my LT install I had the mailorder tune ready to put in for after i was done, this way it wouldnt throw any codes. I then just unplugged the sensors which were junk, threw them away, and left them that way, im not sure how everyone else is doing it though.

Oh and dont forget about doing something to extend the front o2s. Some LT's come with o2 extension kits included; although i wouldnt really recommend using them.

What i would recommnend is going ahead and killing two birds with one stone; by replacing your old o2's with the rears from a vette of the same year you: 1) replace o2 sensors which are likely to be worn anyway, thereby eliminating another possible problem during install/ tuning, and 2) solve the issue of extending the front o2's because the rear from the vette are already the correct length, and you dont have to use the extension kits or the "ghetto splice"
Reply
Old Nov 23, 2005 | 05:08 PM
  #15  
radcliffe18's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2005
Posts: 74
Likes: 0
Default

ok, my question now, is whether to buy the race headers that have no EGR, AIR, or rear 02 sensors. Emissions and all that **** is no question, police here dont even bother doing checks, i've heard that if u get headers with EGR, and AIR, that where the AIR hookups are, the weld will fail and then u have a big hole in ur header, so im askin ur opinion on which u feel i should get, and remember, emissions is no problem and i dont care if i have EGR or AIR, thanks
Reply
Old Nov 23, 2005 | 05:18 PM
  #16  
WS6 Kid's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Sep 2004
Posts: 554
Likes: 0
From: Riverside, CA
Default

if you arent worried about emissions i'd say gor for the race version all the way! There's really no reason not to
Reply




All times are GMT -5. The time now is 10:26 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE