Long Tubes and Emissions

The problem is, the treehugger engineers (better known as CARB) know that catalytic converters work best when hot. The most heat available is exiting the exhaust ports of the engine...hence, the closer the cats are to the engine, the better they function, and the quicker they begin to function after startup..
Now, take that logic one step further, and create a "law", deeming any modification that relocates the cats further away from the engine heat as not allowed, because it makes them less effective and allows more pollutants into the air.
It's kind of impossible to use longer tube pipes without pushing the cats further downstream of the engine, so that there is why they are not and will never be , CARB-approved.
However, few if any other states (as of now) have such strict inspection and testing criteria, looking for that sort of thing. They might check fr the mere presence of cats, but aren't going to stress over their location, and/or being of an aftermarket (hi flow) variety.




The problem is, the treehugger engineers (better known as CARB) know that catalytic converters work best when hot. The most heat available is exiting the exhaust ports of the engine...hence, the closer the cats are to the engine, the better they function, and the quicker they begin to function after startup..
Now, take that logic one step further, and create a "law", deeming any modification that relocates the cats further away from the engine heat as not allowed, because it makes them less effective and allows more pollutants into the air.
It's kind of impossible to use longer tube pipes without pushing the cats further downstream of the engine, so that there is why they are not and will never be , CARB-approved.
However, few if any other states (as of now) have such strict inspection and testing criteria, looking for that sort of thing. They might check fr the mere presence of cats, but aren't going to stress over their location, and/or being of an aftermarket (hi flow) variety.

HTH

Just because your state doesn't care or inspect for it, makes it no less illegal.
To put it in simpler terms, Long tube headers of any variety ARE federally prohibited, simply because CARB said so.
But realistically (and how most rationalize this), the chances of getting caught in the other 49 states is extremely slim. EPA has no real street-level enforcement presence, because the "laws" they strive to uphold aren't criminal, they're civil. They can't arrest you, they can only sue you for damages.


Just because your state doesn't care or inspect for it, makes it no less illegal.
To put it in simpler terms, Long tube headers of any variety ARE federally prohibited, simply because CARB said so.
But realistically (and how most rationalize this), the chances of getting caught in the other 49 states is extremely slim. EPA has no real street-level enforcement presence, because the "laws" they strive to uphold aren't criminal, they're civil. They can't arrest you, they can only sue you for damages.

So you're saying that the Feds (EPA) will (and HAVE) gone after someone like Casper's electronics for manufacturing and selling O2 simulators and yet leave all the long tube header manufacturers (which you say are also illegal in all 50 states) alone? Please explain.
So you're saying that the Feds (EPA) will (and HAVE) gone after someone like Casper's electronics for manufacturing and selling O2 simulators and yet leave all the long tube header manufacturers (which you say are also illegal in all 50 states) alone? Please explain.
"These devices were advertised for “off road use only” or “non-road use only.” However, the O2 Sims were designed and marketed to be used in regular production vehicles (“on road” or “on highway” vehicles), which is illegal under the Clean Air Act. In addition, while there are different control standards for “off road” vehicles (e.g., construction equipment) because of differences in the types of engines and applications, there is no general “off road” use exemption from the pollution control requirements of the Clean Air Act."
It's selective enforcement, the US Justice system is not fair nor will it be any time soon. Rather than just go after the people actually committing the crime (installing o2 sims on non-race cars) they just go after the maker knowing they won't be able to mount a good legal defense (takes $$$). Long tube headers could easily fit the description above.


"These devices were advertised for “off road use only” or “non-road use only.” However, the O2 Sims were designed and marketed to be used in regular production vehicles (“on road” or “on highway” vehicles), which is illegal under the Clean Air Act. In addition, while there are different control standards for “off road” vehicles (e.g., construction equipment) because of differences in the types of engines and applications, there is no general “off road” use exemption from the pollution control requirements of the Clean Air Act."
It's selective enforcement, the US Justice system is not fair nor will it be any time soon. Rather than just go after the people actually committing the crime (installing o2 sims on non-race cars) they just go after the maker knowing they won't be able to mount a good legal defense (takes $$$). Long tube headers could easily fit the description above.
I fully understand the nature of selective enforcement (time, resources, etc), but to simply ignore what (if true) is a LARGE scale and wide-spread violation of EPA laws across the country is not.
I have a strong suspicion that there may be more to this than just a case of C.A.R.B rule(s) being adopted by the EPA and therefore is the law in ALL 49 OTHER states.
If anyone has a specific link in the EPA rules/regs regarding their adoption (automatic or otherwise) of C.A.R.B. rules/regs, I would appreciate it.
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I'm just intrigued by this notion that because LT's are illegal in CA that they are also illegal in the remaining 49 OTHER states.

In the EPA's eves, any non-stock cat, no cats, relocated cats....it's all the same difference to them, a violation.
I think you'lll agree running no cats whatsoever is considered illegal, but what you're not getting is that the very same law is also broken when replacing stock functioning cats, and/or moving them. Both of which is usually done with most LT systems.
If that doesn't make sense, then I could be equally as blind to say my huge-cammed catless car running zero 02 sensors and a splash of leaded race gas is also legal...because my car in fact does pass WI emissions testing like that with no problem.

Not getting caught, and being fully legal can be two very different things.
Last edited by Y2Kvert4me; Dec 11, 2008 at 04:14 PM.
California also has it's own local state EPA that is the parent org for CARB that's not the same as Federal EPA.
BTW In Austin I've never noticed them putting any of my vehicles on the lift nor checking underneath for exhaust issues. They do however pull computer codes but only certain codes with fail you. I had a truck throw a transmission temp code and the inspector said it was passable. Just the same I got cats on my ARH x-pipe.
Anyone know if Illinois is big on EPA enforcement? Noticed Casper's was there. Maybe a state official was looking for bribe

I fully understand the nature of selective enforcement (time, resources, etc), but to simply ignore what (if true) is a LARGE scale and wide-spread violation of EPA laws across the country is not.
I have a strong suspicion that there may be more to this than just a case of C.A.R.B rule(s) being adopted by the EPA and therefore is the law in ALL 49 OTHER states.
If anyone has a specific link in the EPA rules/regs regarding their adoption (automatic or otherwise) of C.A.R.B. rules/regs, I would appreciate it.

Last edited by ysb02; Dec 11, 2008 at 04:25 PM.


In the EPA's eves, any non-stock cat, no cats, relocated cats....it's all the same difference to them, a violation.
I think you'lll agree running no cats whatsoever is considered illegal, but what you're not getting is that the very same law is also broken when replacing stock functioning cats, and/or moving them. Both of which is usually done with most LT systems.
So you're saying that if someone has damaged cats and replaces them and also installs a LT system that does NOT change the specific mounting location then it's "legal"? And of course, to me at least, that begs the question what is "functioning"? What's the standard? Eye-of-the-beholder or driven by empirical data? Does that also mean that ANY cat other than an OEM unit is "illegal"? Does this mean that in addition to all LTs being illegal, that all non-OEM cats currently being manufactured and sold are also illegal?
If that doesn't make sense, then I could be equally as blind to say my huge-cammed catless car running zero 02 sensors and a splash of leaded race gas is also legal...because my car in fact does pass WI emissions testing like that with no problem.

Not getting caught, and being fully legal can be two very different things.
Even I can figure that one out. Thanks.

Other vehicle emissions requirements specific to hardware are shared by all and specifically are included in control equipment tampering laws. States other than Kali seem to take a more hands-off approach to enforcing a Federal law thus ECU codes and/or meeting tailpipe emission limits suffice. Obviously a bit more common sense based which counts Kali out! Would be willing to bet those days however will be over soon after January. Off-topic but just wanted to clarify...
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Other vehicle emissions requirements specific to hardware are shared by all and specifically are included in control equipment tampering laws. States other than Kali seem to take a more hands-off approach to enforcing a Federal law thus ECU codes and/or meeting tailpipe emission limits suffice. Obviously a bit more common sense based which counts Kali out! Would be willing to bet those days however will be over soon after January. Off-topic but just wanted to clarify...
A1







