No problems with the computer, the headers come with sensors 02 and work nicely knock on wood meant for the 2011 jkur love them so far seem as its a little better performance had a strong head wind so mpg can't be compared yet. But they seemed to be a good complement to the long arm kit as it has a much slimmer profile than the oem headers and the cat on driver side is no longer an issue. Teraflex did a nice job.

 

Good to hear your not getting any engine lights. The headers for a 07 don't come with 02 sensors and my JK threw a code until I finally installed the custom tune supplied by Ripp. Looks like they have you 2011 guys covered.

 

Ran jeje around the dunes trails headers were awesome nice sound also no lights issues to report love it when a plan comes together ;+}

 

 

I wanted the cats and hat to modify the cross pipe like others have mentioned. Cut a little out of the crosspipe and fitted some 2 1/2ID tube between the cat (after bend) and crosspipe. This allowed me to turn the cat enough to clear the TF LA kit.

 

@RIPPMODS in post 6 above you asked for pics of the changes GKR made to his long tube headers to fit the long arm kit he had installed. Were there ever any changes made to the design of the long tube headers with cats to make this fit better for Long armed JKs? I have a poly long arm kit (same as in the pics posted by GKR) and am trying to decide if I go with the RIPP headers.