CATS & California - Page 2 - Chevy Impala SS Forum
Reply
 
LinkBack Thread Tools Display Modes
post #11 of 46 (permalink) Old 09-17-2011, 01:47 PM
Senior Member
 
Mr pogo's Avatar
 
Join Date: Oct 2003
Location: SoCal
Posts: 6,358
 
Quote:
Originally Posted by BALLSS View Post
With this said a CAT from a 94-96 LT1 B body dual exhaust will work and appear "stock"

I believe the 96's have the rear O2 bungs as part of the cat outlet pipe so 94-95's wont work on 96's

evil T-47 seatbelt bolts and cutdown ZQ8 bumpstops, Kore3 front brakes, TB bypass, Dynotech DS, F-body EGR, Meziere WP, Comp Cams 1.6RR/CM springs, trans by Moi Industries, Yank 3600, Earls trans cooler/rad cooler delete/Derale t-stat, RAISS, SLP headers, SLP injectors, pypes X-pipe/magnaflows, Borgeson shaft, Hotchkis springs, PPM front stuff, Metco rear arms, Clear Image DS loop/trans crossmember, 3.73s, eaton posi, Hypertech for smog \"[<img BH tuned PCM
Mr pogo is offline  
Sponsored Links
Advertisement
 
post #12 of 46 (permalink) Old 09-18-2011, 11:13 AM
Senior Member
 
Join Date: Apr 2001
Location: Moorpark, CA
Posts: 6,982
 
Garage
Quote:
Originally Posted by Mr pogo View Post
I believe the 96's have the rear O2 bungs as part of the cat outlet pipe so 94-95's wont work on 96's
yeah, would have to weld in a 02 bung for the pre 96 year

\'96 BBB 383/T-56
BALLSS is offline  
post #13 of 46 (permalink) Old 09-18-2011, 07:23 PM
Senior Member
 
KW Baraka's Avatar
 
Join Date: Feb 2001
Location: South Central Texas....By Way of the South Side of Chicago!!!!!
Posts: 19,960
 
The Catco cats in the links that I posted have the O2 bungs in them. They come with a bolt in the bung for 1994/1995's.....remove the bolt for 1996.

But since they are visually identical to stock cats.....we don't need no stinking stamps !

KW
KW Baraka is offline  
 
post #14 of 46 (permalink) Old 08-27-2013, 04:07 PM
Senior Member
 
KingsKrew's Avatar
 
Join Date: Aug 2004
Location: San Diego
Posts: 176
 
Quote:
Originally Posted by KW Baraka View Post
If they’re part #’s 9403 and 9404, then they’re direct replacements for the stock cats. Don’t sweat it. No one will be able to tell the difference. They look stock, perform like stock, etc. And yes…..if you pass emissions (even in Cali) with stock cats, then you’ll pass with these.
KW
Verified yesterday!

1996 Impala SS
1996 Caprice sold

KingsKrew is offline  
post #15 of 46 (permalink) Old 08-27-2013, 08:32 PM
Senior Member
 
Dropped Fullsize's Avatar
 
Join Date: Nov 2006
Location: Central Florida
Posts: 3,118
 
Garage
This is the part of living in Cali that I don't miss. Florida has no smog or inspections. :-)

As a matter-of-fact, my cats went out on my dually a week ago. Cat element broke apart and created all sorts of backpressure and performance issues.



Truck is running fine now and back on the road. :-)

Dropped Fullsize

82 El Camino
95 Impala
00 Crew Cab Chevy Dually
01 300M
02 Silverado
11 Crew Cab Silverado




_______________________________________________
Dropped Fullsize is offline  
post #16 of 46 (permalink) Old 08-27-2013, 09:17 PM
Senior Member
 
Powder96ss's Avatar
 
Join Date: Dec 2004
Location: 408-209-925-BAY AREA
Posts: 2,030
 
You can put almost any cats on, who's to say you didn't put them on in 96,97,98, etc. as long as it passes the sniffer. If you want to tell them you just put new cats on, then be prepared to have that carb e.o. # on there. I know this thread is old but, for anyone that's looking to buy from someone here and has to worry about it.

1995 WHITE B4U...SOLD
1996SSpeed DCM SS
1996 DGGM SS





WWW.theincforum.com


www.OutlineClothing.com
Powder96ss is offline  
post #17 of 46 (permalink) Old 08-29-2013, 12:54 PM
Senior Member
 
Join Date: Apr 2001
Location: Moorpark, CA
Posts: 6,982
 
Garage
In Calif the CARB (calif. air resource board) is the governing body with all the "rules" on what is allowed. Now with the "STAR" program in effect smog shops are under penality if they don't comply with wtf the CARB regulations are. Muffler shops can only "legally" replace a OBD2 CAT with the same size as stock (2 1/4 NOT 2 1/2" CATS).

Obviously some muffler shops will weld in whatever you bring in or buy from them but it is getting harder to find those as they face stiff fines if caught. CARB spends $ sending in decoy cars/agents to smog shops, it is such BS

so magnaFlo paid whatever $ to get a line of weld in CATS CARB certified which is why those are fing $200 each vs $60 for a Catco universal fit one.

Now pulling into a STAR smog shop with a modified motor lets say with headers and CAI (let alone it is a 383 H/C car) and the tech is 1st going to do visual and flag any non CARB certified componet on the car. The headers are screaming a issue to him and if he looks at the CATS and see's they are not in the position of stock ones AND then finds they are not OBD2 CARB labled (stamped in the heat shield) you are not going to pass big time regardless of how clean the tail pipe emission reads.

sooooo you can roll the dice and install the non CARB and in many cases get away with it....or maybe not

is there any diffrence between non CARB and CARB OBD 2 compliant CATS, other than OBD 2 having rear 02 bungs NO!, just the price tag

while I did have to watch the tech jack up my car, crawl underneath and look at the fing stamped in CARB/OBD2 marking and verify the headers were CARB compliant that is not the case on all shops. Just now the STAR program means that if a shop passes a car and it then fails 2 years later, he can get fined. Such BS but is why shops now just don't want to F with cars that are...let's say questionable on what modifications have been done regarding smog compliance.

the 96 OBD2 cars are the problem. OBD1 cars you can weld in the $60 CAT

\'96 BBB 383/T-56
BALLSS is offline  
post #18 of 46 (permalink) Old 08-29-2013, 01:18 PM
Senior Member
 
Mr pogo's Avatar
 
Join Date: Oct 2003
Location: SoCal
Posts: 6,358
 
Quote:
Originally Posted by BALLSS View Post
AND then finds they are not OBD2 CARB labled (stamped in the heat shield) you are not going to pass big time regardless of how clean the tail pipe emission reads.
the thing tho is that from what I remember last I looked at my spare 96 oem cats sitting in my storage shed, they do not have any obd2 (or anything else) stampings at all.

so if kw's cat looks like oem and second O2 bung as required, all things being equal I doubt a smog shop will flag them.

evil T-47 seatbelt bolts and cutdown ZQ8 bumpstops, Kore3 front brakes, TB bypass, Dynotech DS, F-body EGR, Meziere WP, Comp Cams 1.6RR/CM springs, trans by Moi Industries, Yank 3600, Earls trans cooler/rad cooler delete/Derale t-stat, RAISS, SLP headers, SLP injectors, pypes X-pipe/magnaflows, Borgeson shaft, Hotchkis springs, PPM front stuff, Metco rear arms, Clear Image DS loop/trans crossmember, 3.73s, eaton posi, Hypertech for smog \"[<img BH tuned PCM
Mr pogo is offline  
post #19 of 46 (permalink) Old 08-29-2013, 02:02 PM
Senior Member
 
KingsKrew's Avatar
 
Join Date: Aug 2004
Location: San Diego
Posts: 176
 
Quote:
Originally Posted by BALLSS View Post
so magnaFlo paid whatever $ to get a line of weld in CATS CARB certified which is why those are fing $200 each vs $60 for a Catco universal fit one.

Now pulling into a STAR smog shop with a modified motor lets say with headers and CAI (let alone it is a 383 H/C car) and the tech is 1st going to do visual and flag any non CARB certified componet on the car. The headers are screaming a issue to him and if he looks at the CATS and see's they are not in the position of stock ones AND then finds they are not OBD2 CARB labled (stamped in the heat shield) you are not going to pass big time regardless of how clean the tail pipe emission reads.

sooooo you can roll the dice and install the non CARB and in many cases get away with it....or maybe not
I passed with PCM tune, K&N CAI, headers, air pump delete, and (somewhat) obviously BRAND NEW Catco cats @ a STAR smog shop CA. I did however walk in to the shop with a folder full of info, including CARB/EO info printouts for all components (brought EO info for Magnaflow, better than nothing!).

1996 Impala SS
1996 Caprice sold


Last edited by KingsKrew; 08-29-2013 at 02:09 PM.
KingsKrew is offline  
post #20 of 46 (permalink) Old 08-29-2013, 02:41 PM
Senior Member
 
Join Date: Apr 2001
Location: Moorpark, CA
Posts: 6,982
 
Garage
Quote:
Originally Posted by Mr pogo View Post
the thing tho is that from what I remember last I looked at my spare 96 oem cats sitting in my storage shed, they do not have any obd2 (or anything else) stampings at all.

so if kw's cat looks like oem and second O2 bung as required, all things being equal I doubt a smog shop will flag them.
OEM CATS did not have any markings on them. It is for "replacement" CATS manufacturers make. MagnaFlo decided to go through the CARB process and costs so they coud sell a CARB replacement. If the CATS in the car "look" stock I would bet the majority of the time there would be no issue.

It is when headers without air fittings or some other "visual" thing leads to a particular tech to look further

Quote:
Originally Posted by KingsKrew View Post
I passed with PCM tune, K&N CAI, headers, air pump delete, and (somewhat) obviously BRAND NEW Catco cats @ a STAR smog shop CA. I did however walk in to the shop with a folder full of info, including CARB/EO info printouts for all components (brought EO info for Magnaflow, better than nothing!).
I suspect your diligent paperwork, albiet you don't have the magnaFlo CATS, is what did it.

I don't volunteer any info but I do have CARB stickers on car for: Headers, CAI, MSD box and even RR (although they never see those). I don't say anything about the 383 or tune. Heck it even says "manual" under transmission on my printout of smog cert.

Obviously in Kings test he passed 'tailpipe" and had enough documentation for the tech to pass visual.

it is still fing BS as what comes out of the tail pipe is what matters. The rest is political revenue making BS....but if that is the game you just need to know how to play it...and win.

\'96 BBB 383/T-56
BALLSS is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Impala SS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome