A.I.R & EGR Headers?

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Oct 20, 2005 | 08:59 PM

#11

stone150

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From: Houston

i mean air and egr?

Oct 21, 2005 | 02:31 AM

#12

anarchyracing

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From: Fort Wainwright

Quote:

Originally Posted by budhayes3

My 99 doesn't have AIR...I think it depends if it has Cal or Fed emissions? I haven't seen too many NBS trucks with AIR personally, might have to do with being East Coast.

ASM's will fit, but require minor cutting and welding of the y-pipe. The Dynatech system will also bolt right in, and I've heard that the StainlessWorks will fit if you delete the EGR and AIR (if equipped).

how would i go about deleting EGR and AIR if i find that i have either or both?

Oct 21, 2005 | 09:51 AM

#13

budhayes3

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From: Hackensack, NJ

Quote:

Originally Posted by stone150

i mean air and egr?

Still same as 99, should have EGR, may or may not have AIR (honestly I'm not 100% sure when they stopped using AIR).

Quote:

Originally Posted by anarchyracing

how would i go about deleting EGR and AIR if i find that i have either or both?

You'd need to have the PCM tuned so you wouldn't get a code, and block off the ports from the removed equipment. Not so sure about the AIR since mine didn't have that from the factory and I really haven't seen too many NBS trucks with AIR. Since you have a 99, it's good idea performance-wise to upgrade to an 01-02 PCM anyway. The 99-00 PCM's are prone to false knock and tuning issues. Also, the 99 injectors flow less than 00 and up (21 lb/hr vs 24.7 lb/hr), so upgrading to 00 and up injectors is also nice for performance. I have a tuned 02 PCM so I was able to delete my EGR w/o any issues (02's don't have EGR). If you do a search on 99-02 PCM swap you'll find a bunch of info about it.

Oct 21, 2005 | 10:29 AM

#14

anarchyracing

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From: Fort Wainwright

so before i even get headers {wich will now be Long Tubes} since i now know there are some LT's out there for 99 4x4's... ill look into getting a tuned 02 PCM and an injector upgrade! thanks very much!!!

Oct 21, 2005 | 11:15 AM

#15

budhayes3

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From: Hackensack, NJ

Quote:

Originally Posted by anarchyracing

You're very welcome

The tuned 02 PCM has been my best mod so far, night and day difference. You can usually get injectors in the classifieds section for under $100. 4.8-6.0 injectors are all the same (except maybe for flex fuel). I know that 00-02 will work, not sure about 03 and up.