Legality of Longtubes

[Jon7I2]

This question is just to for me to make sure i am completely right. Are longtube emission styled headers w/ cats legal in IL? I am 99% sure that the emissions 1's are. However, i have a friend that insists that they are illegal. I just want to know for sure, so i can throw this site in his face when you guys prove me right.

[tonyjnjz]

i THINK in most states if not all it is ILLIGAL to relocate the cats in any way but whos really gonnna notice or care when they do your inspection as long as there there?? ..i easily could be wrong though.just what ive heard

[2001NBMZ28]

I'd post in the midwest section, or www.mfba.org for some local info. I live in the land of no emissions checks.

[nhraformula]

it is not legal. moving the cats from stock point.
i passed il emissions cas they didnt look. they just hooked me up to odb.
if they would of looked or smelled my exhaust fumes from the cam and headers, i would of been so fucked.

[tonyjnjz]

ok here we go guys.....this is what LPE said when i asked them about headers on my car and y they didnt put them on the car


Hi Tony,

We looked into some long tubes for the F-bodys, but legally we weren't
allowed to modify the emission systems on new vehicles
(cats). Thus that is why we did not install LT headers on these
vehicles. I would consider the Kooks long tube headers and Y pipe
with cats for your combination. Price of the headers, cats and Y would
be $1395.00. I would then take it to someone for a tune, to
make sure everything stays safe. Just let me know if you would like a
set!

sincerely,



Jeff Myers
Lingenfelter Performance Engineering

is that a good price for kooks btw???

[Jon7I2]

so he said he would consider kooks and cats w/ y pipe, so does that make it legal then?

[nhraformula]

so he said he would consider kooks and cats w/ y pipe, so does that make it legal then?

no. its still moved from the stock point.

jon, go to speed inc www.ls1speed.com

they will do whatever you want. they put on my long tubes, got rid of emissions and put in a catless y pipe.

[supermando]

As long as the cats are in there and you don't have any obvious leaks in the front, they will never check the location. Screw emissions anyway!