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Old 11-12-2012, 08:31 AM   #1
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Why are long tube headers illegal?

I know that they are but why. And also is there anyway to make them "legal". Because I'm looking to get cams and you "need" long tube headers for the cams and I'm trying to stay street legal thanks!
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Old 11-12-2012, 08:40 AM   #2
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Never heard of "needing" long tubes for cams, where did you get that info?
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Old 11-12-2012, 08:46 AM   #3
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Old 11-12-2012, 09:00 AM   #4
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I don't think the long tubes are illegal, however the o/r x pipe might be in your area. just get high flow cats, if it really is that big of a deal
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Old 11-12-2012, 09:26 AM   #5
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I don't know state by state, but the reason in California is because the long tubes prevent the cats from getting hot enough to preform their function properly.
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Old 11-12-2012, 10:05 AM   #6
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I think required is a bit of a stretch, just like I'm pretty sure the gears are not required. Sure it may help certain issues with the vehicle, maybe they put that on there so they have less people calling and complaining saying "hey, why is my car doing this now?"

Not saying you shouldn't or that its a bad idea. Please someone explain to me why you would NEED LT's.
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Old 11-12-2012, 10:11 AM   #7
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Have you called them yet?
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Old 11-12-2012, 10:34 AM   #8
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Quote:
Originally Posted by ChrisMustangs
I know that they are but why. And also is there anyway to make them "legal". Because I'm looking to get cams and you "need" long tube headers for the cams and I'm trying to stay street legal thanks!
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Originally Posted by GrabberBlue5.0
Never heard of "needing" long tubes for cams, where did you get that info?
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Originally Posted by GrabberBlue5.0
I think required is a bit of a stretch, just like I'm pretty sure the gears are not required. Sure it may help certain issues with the vehicle, maybe they put that on there so they have less people calling and complaining saying "hey, why is my car doing this now?"

Not saying you shouldn't or that its a bad idea. Please someone explain to me why you would NEED LT's.
So I've heard. If I remember correctly for the breathing purposes, better idle. (So I've heard)
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Old 11-12-2012, 10:46 AM   #9
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LTs help it breathe better and you won't see that good of a gain in HP without them. Cams....good. Cams paired with LTs......better.
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Old 11-12-2012, 10:49 AM   #10
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Ok so we know now that they are not required just recommended. But are they illegal if seen in some places they are allowed for off road use only?
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Old 11-12-2012, 11:12 AM   #11
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Longtubes are considered illegal since they change the position of the cats (they move them back a few inches) and any modifications to the emissions system of these cars is considered illegal. I know some places that will spot fail you on an emissions inspection. In states that don't have emissions inspections, it probably won't be an issue.
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Old 11-12-2012, 11:16 AM   #12
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Do you know if Missouri passes or fails you?
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Old 11-12-2012, 12:09 PM   #13
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I know here in Virginia they don't actually hook up a tester to see how your emissions are, they just look for the cats... Now I am sure that if you go in running rich as hell they may fail you...

They are probably advertising that you should get the LTs and gears with the cams to get the full potential out of the cams.. Kinda like 1+2=3...
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Old 11-12-2012, 01:29 PM   #14
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Do you know if Missouri passes or fails you?
I couldn't tell you specifically, I know in same places around Louisiana, they'll fail you on a visual. If you get a catted mid pipe, most tuners will turn the rear O2s off and that will cause a system not ready through the OBD2 inspection portion. If you have a shop like brenspeed, bama, or whoever write tune for you when you get longtubes, have them keep the rear O2 sensors activated. The O2 sims do not work on 05-09 cars FYI.
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Old 11-12-2012, 02:10 PM   #15
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Originally Posted by Destination S19

I couldn't tell you specifically, I know in same places around Louisiana, they'll fail you on a visual. If you get a catted mid pipe, most tuners will turn the rear O2s off and that will cause a system not ready through the OBD2 inspection portion. If you have a shop like brenspeed, bama, or whoever write tune for you when you get longtubes, have them keep the rear O2 sensors activated. The O2 sims do not work on 05-09 cars FYI.
Well you can buy LT's on American muscle with O2 sensor extensions would that make a difference?
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Old 11-12-2012, 02:12 PM   #16
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http://www.google.com/search?q=misso...w=1024&bih=690
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Old 11-12-2012, 03:59 PM   #17
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In Arkansas we have no emission laws at all, but there's always the chance of a law getting passed outlawing your long pipes which would be a complete waste of money.
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Old 11-12-2012, 04:48 PM   #18
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In Arkansas we have no emission laws at all, but there's always the chance of a law getting passed outlawing your long pipes which would be a complete waste of money.
Ex post facto
I think it's apply
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Old 11-12-2012, 05:22 PM   #19
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Well you can buy LT's on American muscle with O2 sensor extensions would that make a difference?
You need the extensions anyway.
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Old 11-12-2012, 07:27 PM   #20
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You need the extensions anyway.
False........the 2011 and up does not require the use of O2 extensions. They have also been know to cause issues. Unhook the harness from the tranny and you will be golden.
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Old 11-12-2012, 08:15 PM   #21
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False........the 2011 and up does not require the use of O2 extensions. They have also been know to cause issues. Unhook the harness from the tranny and you will be golden.
If you look at the product description, it says "now includes correct length O2 sensors"
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Old 11-12-2012, 08:20 PM   #22
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If you look at the product description, it says "now includes correct length O2 sensors"
I understand complete kits come with extension but what I'm saying is that you don't need to use them. The factory harness will work without having to splice. Ask Beefcake racing about their issues with using aftermarket O2 extensions....not good.
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