Pontiac GTO 2004-2006 - My new Long Tubes and Emissions...
03-11-2012, 03:37 PM
I have just recently purchased pacesetter long tube headers with catless mids for my 2004 GTO. I am currently in AIT in AZ but i'm about to go to my duty station Fort Lewis in Tacoma, WA. I was wondering if anyone knows if they are super strict on emissions up in Washington, because i have never been to the pacific northwest. I am just worried that if I put these catless mids on my car that I will get in trouble and have to spend a bunch of money trying to get them back to normal. The area where I live now they don't even really pay attention to emissions so it wasn't really a big deal. So if anyone that lives in that area could help me out, or if you know anything about it any info would be greatly appreciated
03-11-2012, 05:35 PM
cant you just keep it registered in AZ?
03-11-2012, 06:27 PM
The car is registered in Illinois cause that is where I'm from I thought about that but i wasn't sure if it would work.
03-11-2012, 06:42 PM
Your car will get OBD-II scanned with a handheld code reader, if you have any codes, you fail, if you don't have any codes, you pass. There is no sniffer test for OBD-II cars, so if you tune out all the emissions/o2 codes you should be fine.
EDIT- But you do have to go through an emissions station, so I recommend cats so you pass a visual inspection if you get one for whatever reason.
03-11-2012, 06:53 PM
Would it be worth just buying some cheap magnaflow hi flow cats and having them welded onto the catless mid pipe?
03-11-2012, 08:14 PM
Magnaflow high flow cats aren't cheap. Well they are if u get the universal fit...which then requires welding.
I've read someplace that u can buy a tuner and turn off the rear O2 sensors. I have no clue if it will work. Or u can hook up O2 simulators. Which aren't sold anymore but can be made.
Call Marylandspeed they emailed me back one day I asked the same question....they said..with the right tune u can pass emissions, call us.
Hope this helps I'm no mechanic.
03-11-2012, 09:00 PM
Yeah thanks for the help I will definitely give maryland speed a call.
03-11-2012, 11:20 PM
In Maryland they don't hook up a sniffer...me meaning they only hook up the diagnostics. So in MD fool ur computer fool the emmission. They do put a mirror under ur car but those clowns don't even care if they spot a cat or not
03-12-2012, 12:09 AM
im stationed in ft. lewis and i have stainless works headers, off road mid pipe, and spintech mufflers, i also have heads intake cam and n2o and i have no problem passing emission here.
03-12-2012, 01:46 PM
@04gto5.7 is your check engine light on? Do you have a tuner? No cats and it passes...
I know state to state is different. In MD they run a diagnostic test. So the computer knows if the cats are there. Take the cats off and the check engine light should come on.
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