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-   -   headers (http://www.ramforumz.com/showthread.php?t=142938)

terry littlejohn 05-22-2013 12:01 PM

headers
 
yes I am new here but not with mopars. I just had to bury my 97 4x4 Dakota that I loved because it was t-boned after I done a complete rebuilt on it two years ago . still getting over it. now I have a 2011 hemi ram 4x4. I have been looking for parts like headers , cold air, free flow exhaust. my problem this is my first dealing with new style hemi, I was wondering can someone give me the quick description of the difference of bolt-on parts. some have told me header are different from 2008 rams and 2010 and 2011, same with cold air changed in 2009, I just trying to understand what I can bolt on my 2011 ram. thanks terry.:4-dontknow:

CdnoilRAM 05-22-2013 10:30 PM

If you have the $$ then ARH should be your headers of choice, however if you're not willing/able to fork out that kind of dough, then check out the OBX headers. CAIs are dime a dozen and most have the same uninteresting results.

Head exhaust ports are different shapes between the '04-'08 and '09+ but piping is the same for headers. I ported a set of '07 headers to match my '09 heads with no real issues.

Throttle body position, intake manifold, and timing cover/accessory location is also changed between the 2 generations.

terry littlejohn 05-23-2013 07:17 AM

thanks, I was wonder what those changes were to make the different headers and cold air. so do you thing the 2011 ports are close enough to match a set of headers from a 2009 or 2010 to my 2011? I see a lot of 2008 to 2010 headers on ebay.

terry littlejohn 05-23-2013 08:15 AM

headers
 
sorry I meant to say the 06 to 08 header flange to fit the 2011 exhaust port shape? I tried to edit the post but didn`t see an edit link. thanks for you thoughts.

CdnoilRAM 05-24-2013 09:58 PM

CAI is due to the relocation of the throttle body. The pre-eagle (pre '09) intake manifold had the throttle body located at the rear of the manifold facing forward, the eagle manifold has it at the front pointed up.

The eagle head's port design is D-shaped and about 3/16" taller than the rectangular port from the pre-eagle heads. It makes a huge difference in flow between the two, and since you have an '11 you want to get a set of headers for the eagle heads, it's not worth the restriction to try and port them. I did it because I didn't want to throw away $1400 worth of headers to get the same ones with a different flange.

For mine, I just scribed the eagle port design onto my non-eagle headers and then took a die grinder with a ream bit to it before smoothing it out with a stone. I was very thin on the welds and it's possible over time that they broke slightly but they functioned perfectly for the duration they were on the new heads.

terry littlejohn 05-25-2013 10:36 PM

I email obx an ebay supplier and they said 10 to 15 weeks and the will have a header out for the newer head (4gen?). never said if it was a shorty or long tube.

Chris b 05-26-2013 07:02 AM

Quote:

Originally Posted by terry littlejohn (Post 1107806)
I email obx an ebay supplier and they said 10 to 15 weeks and the will have a header out for the newer head (4gen?). never said if it was a shorty or long tube.

The obx long tube headers for the srt8 jeep will fit.

terry littlejohn 05-26-2013 07:46 AM

what year srt jeep? are the short or long?

Chris b 05-26-2013 09:55 PM

2010 SRT8 jeeps and they are long tubes. You have to work with them a bit where it hits the motor mount on the driver side but its no biggie from want ive heard.

CdnoilRAM 05-26-2013 11:54 PM

And by 'work' he means take a hammer and dent one primary tube in 1/4" and it will clear the motor mount. Everything else bolts into place.


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