Converting Headers For Emissions!
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From: Ventura County, California
Car: 2002 GS300 Sport Design
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Converting Headers For Emissions!
hey there first of all i have a probloem since i do live in california, my question is am I able to get a set of stock exhaust manifolds and cut of the tubing that goes on top for the smog stuff? cause the set of headers i have there either flowtech or dynomax i cant really remeber to be honest they have a tube thing for the o2 sensor but it needs to be drilled out too. so my idea was would i be able to take the smog tubes that go on top of the exhaust manifolds and drill the holes on the headers and weld them in place together? i need some pretty good ideas on what you people thing or what should i do or so, thanks.
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From: Ventura County, California
Car: 2002 GS300 Sport Design
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Re: Converting Headers For Emissions!
does anyone have any ideas or suggestions how this might turn out to be?
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Re: Converting Headers For Emissions!
Entirely possible to physically be done, but still wouldn't pass an inspector with a good eye, since it wasn't made by someone who paid the state to get the EO #.
In other words.....State didn't get their $ for it, so it ain't legal!
Why do you think the SAME headers from a manufacturer, one with SMOG tubes cost $400/and the same ones without cost $100.
In other words.....State didn't get their $ for it, so it ain't legal!
Why do you think the SAME headers from a manufacturer, one with SMOG tubes cost $400/and the same ones without cost $100.
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Joined: Oct 2007
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From: Ventura County, California
Car: 2002 GS300 Sport Design
Engine: 3.0L 2JZGE
Transmission: 5-Speed Shiftable Automatic
Re: Converting Headers For Emissions!
Entirely possible to physically be done, but still wouldn't pass an inspector with a good eye, since it wasn't made by someone who paid the state to get the EO #.
In other words.....State didn't get their $ for it, so it ain't legal!
Why do you think the SAME headers from a manufacturer, one with SMOG tubes cost $400/and the same ones without cost $100. 
In other words.....State didn't get their $ for it, so it ain't legal!
Why do you think the SAME headers from a manufacturer, one with SMOG tubes cost $400/and the same ones without cost $100. 
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From: SF bay area
Car: 86 Camaro iroc-z28
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Re: Converting Headers For Emissions!
if you had a welder it would be pretty easy aslong as you had the headers out of the car.
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Re: Converting Headers For Emissions!
those air tubes will not fit right to your headers. they will have to be going into the top of each header tube. i just found some one who cut their air tubes off and bought them. i did this to my tes headers a few weaks ago
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Re: Converting Headers For Emissions!
You could weld the correct nuts to your headers, then thread the stock A.I.R. tubes in, making them appear to have been made that way. And have the ability to just unscrew them, them put in NPT plugs, if you were ever so inclined to do that.
Might be tricky lining up the threads to each section. Not even sure that would be possible. Worst case? Cut & weld.
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From: Ventura County, California
Car: 2002 GS300 Sport Design
Engine: 3.0L 2JZGE
Transmission: 5-Speed Shiftable Automatic
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From: Ventura County, California
Car: 2002 GS300 Sport Design
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Transmission: 5-Speed Shiftable Automatic
Re: Converting Headers For Emissions!
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From: Ventura County, California
Car: 2002 GS300 Sport Design
Engine: 3.0L 2JZGE
Transmission: 5-Speed Shiftable Automatic
Re: Converting Headers For Emissions!
The stock A.I.R. tubes are 4 tubes, 1 per exhaust tube.
You could weld the correct nuts to your headers, then thread the stock A.I.R. tubes in, making them appear to have been made that way. And have the ability to just unscrew them, them put in NPT plugs, if you were ever so inclined to do that.
Might be tricky lining up the threads to each section. Not even sure that would be possible. Worst case? Cut & weld.
You could weld the correct nuts to your headers, then thread the stock A.I.R. tubes in, making them appear to have been made that way. And have the ability to just unscrew them, them put in NPT plugs, if you were ever so inclined to do that.
Might be tricky lining up the threads to each section. Not even sure that would be possible. Worst case? Cut & weld.
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From: Canyon Country, CA
Car: 1991 Camaro Z28 TPI
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Re: Converting Headers For Emissions!
The stock A.I.R. tubes are 4 tubes, 1 per exhaust tube.
You could weld the correct nuts to your headers, then thread the stock A.I.R. tubes in, making them appear to have been made that way. And have the ability to just unscrew them, them put in NPT plugs, if you were ever so inclined to do that.
Might be tricky lining up the threads to each section. Not even sure that would be possible. Worst case? Cut & weld.
You could weld the correct nuts to your headers, then thread the stock A.I.R. tubes in, making them appear to have been made that way. And have the ability to just unscrew them, them put in NPT plugs, if you were ever so inclined to do that.
Might be tricky lining up the threads to each section. Not even sure that would be possible. Worst case? Cut & weld.
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Re: Converting Headers For Emissions!
i dont think it would be too hard to do. I believe the threads are pipe thread, so you will have to buy threaded parts to weld to the headers.
Just screw the threaded parts to the AIR tubes, locate the tube assembly on the header and weld. Then remove the AIR tubes and drill a hole in the header through the welded nut. Or i suppose you could mark and drill the holes first, but this way its idiot proof.
Just screw the threaded parts to the AIR tubes, locate the tube assembly on the header and weld. Then remove the AIR tubes and drill a hole in the header through the welded nut. Or i suppose you could mark and drill the holes first, but this way its idiot proof.
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Re: Converting Headers For Emissions!
I see you are a California boy so let me tell you straight - you will never pass smog! each set of aftermarket neaders have to have a CARB approval number assigned to it - you personal set of aftermarket make overs dont.
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Re: Converting Headers For Emissions!
if you want to buy some hooker 2055 headers i have a pair that are used would sell them fairly cheap you just need a y pipe mine was crushed by a mechanic. i have lt's now have any use for them. pm me i am in sb
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Converting Headers For Emissions!
i dont think it would be too hard to do. I believe the threads are pipe thread, so you will have to buy threaded parts to weld to the headers.
Just screw the threaded parts to the AIR tubes, locate the tube assembly on the header and weld. Then remove the AIR tubes and drill a hole in the header through the welded nut. Or i suppose you could mark and drill the holes first, but this way its idiot proof.
Just screw the threaded parts to the AIR tubes, locate the tube assembly on the header and weld. Then remove the AIR tubes and drill a hole in the header through the welded nut. Or i suppose you could mark and drill the holes first, but this way its idiot proof.
"Guys.......just found the correct part number for the manifold plugs. Edelman number 120500. Should be available at most GOOD auto parts stores. I'm picking mine up from Auto Zone tonight. Thanks to Randy from Eckler's! "
Or just go to Home Depot/Lowe's and buy 1/4" (IIRC) NPT pipe plugs.
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From: Ventura County, California
Car: 2002 GS300 Sport Design
Engine: 3.0L 2JZGE
Transmission: 5-Speed Shiftable Automatic
Re: Converting Headers For Emissions!
im telling **** like that dont matter for me and trust me i have my exhaust dump in front of my rear passenger tire and that dont matter either they still do my exhaust there really good friends but they dont do illegal stuff though.
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From: Ventura County, California
Car: 2002 GS300 Sport Design
Engine: 3.0L 2JZGE
Transmission: 5-Speed Shiftable Automatic
Re: Converting Headers For Emissions!
I saved this from a post awhile back.....
"Guys.......just found the correct part number for the manifold plugs. Edelman number 120500. Should be available at most GOOD auto parts stores. I'm picking mine up from Auto Zone tonight. Thanks to Randy from Eckler's! "
Or just go to Home Depot/Lowe's and buy 1/4" (IIRC) NPT pipe plugs.
"Guys.......just found the correct part number for the manifold plugs. Edelman number 120500. Should be available at most GOOD auto parts stores. I'm picking mine up from Auto Zone tonight. Thanks to Randy from Eckler's! "
Or just go to Home Depot/Lowe's and buy 1/4" (IIRC) NPT pipe plugs.
Thread Starter
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Joined: Oct 2007
Posts: 1,078
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From: Ventura County, California
Car: 2002 GS300 Sport Design
Engine: 3.0L 2JZGE
Transmission: 5-Speed Shiftable Automatic
Re: Converting Headers For Emissions!
i dont think it would be too hard to do. I believe the threads are pipe thread, so you will have to buy threaded parts to weld to the headers.
Just screw the threaded parts to the AIR tubes, locate the tube assembly on the header and weld. Then remove the AIR tubes and drill a hole in the header through the welded nut. Or i suppose you could mark and drill the holes first, but this way its idiot proof.
Just screw the threaded parts to the AIR tubes, locate the tube assembly on the header and weld. Then remove the AIR tubes and drill a hole in the header through the welded nut. Or i suppose you could mark and drill the holes first, but this way its idiot proof.
Thread Starter
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Joined: Oct 2007
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From: Ventura County, California
Car: 2002 GS300 Sport Design
Engine: 3.0L 2JZGE
Transmission: 5-Speed Shiftable Automatic
Re: Converting Headers For Emissions!
does any one have a set of air tubes i could bum off?
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From: Ventura County, California
Car: 2002 GS300 Sport Design
Engine: 3.0L 2JZGE
Transmission: 5-Speed Shiftable Automatic
Re: Converting Headers For Emissions!
any one out there that could help with some air tubes by any chance?
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