Look at lift 'height', not brand.

And you should probably listen to feedback from any of the threads concerning OME HD coils (a quick search will bring up plenty) rather than what the MFG tells you. Those two excerpts from the FAQ's posted above are a good indication of what a whole lot of people have found to be fairly accurate...

 

I saw you have exhaust on your jeep, have you looked to see if anything is hitting that or something might be rubing