[plainwhitet]

This is the first time I have needed to take the suby in for emissions testing, and was curious if a g200 catback is going to cause me problems? Will they fail me outright just for having a modified exhaust ? Should I put the silencer in? I realize they don't need to actually hook anything up to the exhaust, but was curious if there will be issues.

Thanks,

[jksti07]

You should be ok I would think.. I don't think they can fail you outright for a modified exhaust system. Just be careful about a couple of things :

1) Do you currently have a check engine light on the vehicle? You will fail if you do.

2) Are all "Readiness Tests" good to go? When they plug their device into your OBD-II port they are looking for more than just trouble codes. Make sure the car is warmed up and drive around for abit before heading out to the emissions testing place so that all readiness tests can complete. More info on what a Readiness Test is here -> Air Team - Illinois Vehicle Emission Test Program

3) Is there a catalytic converter on the vehicle? If not, there is a good chance you will fail. Reason? Some places use the mirror test under the vehicle to look for a cat, and unless you've tinkered with the PCM you will fail specific readiness tests pertaining to the rear catalytic converter.

Good luck!

[plainwhitet]

Thanks for the response! I've still got my cats, and no check engine lights etc. Just was worried that they would fail me just on the basis of a modified exhaust. Whew, theres a load off my mind. I believe I will go and get it tested sometime at lunch next week, and will let everyone know if I had any problems

[Jethro]

Yeah you should be fine, my STi is also modded and I just passed emissions no prob. I did not have any CEL's and have a cat on my car.

[plainwhitet]

Thought I would post an updat; went yesterday and had no issues. They didn't look under the car, just hooked up to the ODB-II and a minute later they were done. In any case I still have my cats so that shouldn't have been an issue anyway. Appreciate the help guys.

[jackel23]

Wow, did they do the mirror test? Well I have spent the last 7 years in Savannah, Ga, where there are no emissions test. I'm getting ready to move back to Chicago, and I'm thinking about leaving my Georgia tags on, because I have no cats, I have and external wastgate, and TGV Deletes. I don't have any CEL because of the AP V2, but I'm worried that I may have to re-register my car in Illinois. Georgia is such a joke about vehicle laws, I still have my Illinois drivers license, and Georgia plates. Its been a while since I lived in Chicago, how often do you have emissions test? Also does anyone else do emission testing besides air team?

[plainwhitet]

To be able to renew your license plate stickers your car has to pass an emissions test, though Im not sure if its required every year or if its every few years.

Nope, no mirror test, no peaking under the car, the dude just wanted me in and out to get the next car done.

As far as getting around emissions.. there are some counties outside of Chicago that don't require emissions testing. If you really wanted to get shady with things, and had a family member living in one of those counties.. you could always register your car at their address and then you won't need to worry about it. Not something I would do, but my girlfriend did it with her dad's address get away with not having city stickers/emissions testing

[bbastyr]

All they do in Chicago and burbs is plug into the ODB port.

[Toofast22]

How often do they give emissions testing? I just got my 05 STi over the summer and was planning on getting a g200 and invidia v2 catless dp with accessport. Wanted to know how often I'd need to switch out my exhaust.

[P&L Motorsports]

Originally Posted by Toofast22

How often do they give emissions testing? I just got my 05 STi over the summer and was planning on getting a g200 and invidia v2 catless dp with accessport. Wanted to know how often I'd need to switch out my exhaust.

First test is required when the car is 4 years old, then every 2 years thereafter. As stated above you will not need to swap exhausts because all the test consists of is an OBD2 scan.

-Ty

[Toofast22]

Originally Posted by P&L Motorsports

First test is required when the car is 4 years old, then every 2 years thereafter. As stated above you will not need to swap exhausts because all the test consists of is an OBD2 scan.

-Ty

I'm in cook county, so if I'm catless and the check engine light is not on I will still pass the emissions test?

Kevin

[STiProsDoc]

Originally Posted by Toofast22

I'm in cook county, so if I'm catless and the check engine light is not on I will still pass the emissions test?

Kevin

If all they do is the OBD test for a CEL and no visual test, I don't see why you wouldn't pass as long as you have some EM or tune to get rid of the CEL.

[bbastyr]

You will have no trouble passing, so long as there's no CEL

[Toofast22]

Thats what I like to hear