Ordering Headers
Thread Starter
Instructor
Joined: Jun 2015
Posts: 177
Likes: 12
From: Clinton Twp, Mi
Ordering Headers
Hey guys, I have made my mind up on which headers I'm purchasing for my 98 C5. (ARH) is my choice, my question is: When checking out on the website of choice, I'm presented with (options). 1) Tunnel Plate. 2) Air Tubes. Etc. To those of you with purchasing and installing headers, what exactly do I need to order at check out besides headers, I'm given a long list of items when finally placing my order. 
Thank you!
Thank you!
Instructor
Joined: Jun 2014
Posts: 189
Likes: 20
Hey guys, I have made my mind up on which headers I'm purchasing for my 98 C5. (ARH) is my choice, my question is: When checking out on the website of choice, I'm presented with (options). 1) Tunnel Plate. 2) Air Tubes. Etc. To those of you with purchasing and installing headers, what exactly do I need to order at check out besides headers, I'm given a long list of items when finally placing my order.
Thank you!
Thank you!
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
If you are not going to remove your A.I.R. System,, you have to get the air tubes.
If you don't install the A.I.R. Check valves on to the air tubes, you will throw DTCs and never be able to pass emissions.
IF,, you plan to DELETE the A.I.R. system when you get your PCM tuned,, order the heads WITHOUT air tubes. The A.I.R. system can easily be tuned out when the tuner tunes your PCM.
If you don't you will have to use block off plates if you ever decide to get rid of the AIR System.
If you don't install the A.I.R. Check valves on to the air tubes, you will throw DTCs and never be able to pass emissions.
IF,, you plan to DELETE the A.I.R. system when you get your PCM tuned,, order the heads WITHOUT air tubes. The A.I.R. system can easily be tuned out when the tuner tunes your PCM.
If you don't you will have to use block off plates if you ever decide to get rid of the AIR System.
