Narco944

I have a 98 LS1 vette and am looking to buy a set of Kooks headers from a guy. He told me that these headers were on an 03. He said they will mount up and work but that I will need an air tube from a 2001+ vette or cap the egr bung on the headers.

I live in Atlanta and have to get emissions inspections. When I look up the price of an air tube they are all over $100. Does this all sound accurate? After installing the headers I'm going to get it tuned. Could I just cap off the egr bung and get the emissions stuff tuned out? Or am I better off looking for an air tube?

I've never had aftermarket headers so this is all new to me. I appreciate the help.

3boystoys

Don't think the Vette has an EGR. Should just have to block it off on the headers. You'll need to keep the O2 bung(s) .

Narco944

right, but if I block it off and forget the air tube will I still pass emissions?

lionelhutz

What does the emissions test involve? If they visually inspect then I'd hook it up, even if you get it tuned out. The capped AIR ports on both headers might raise questions. If they do an OBDII or tailpipe test then you could cap them and remove the AIR system.

Narco944

The do a visual of the cats but I'm not sure if they look for the other.

Narco944

anyone?

Chicago1

you won't pass with the LT if they do a inspection or know what they are looking for also put a block off plate and tune it out.

Narco944

Do exhaust shops have bock off plates or is that something I buy separately?

Chicago1

I ordered mine buy you can have them make you one out of some scrap meteal