I got a 2010 Jeep JKU. I've had a High performance exhaust, K/N cold air intake and a superchips flashpaq running 87 or 93 tune since I lifted and added 35's 6 years ago.l, bought in 2013. Anyway back when I had death wobble the CAI bracket broke and I removed it and put the stock box back on. Didn't drive it from May of this year until about 7 weeks ago when I got it back on the road. I was averaging between 15.5 and 17.5 mpgs before removing the CAI. Now I've added a Magnaflow exhaust because the thrush broke off but other than that I changed the plugs and wires and oil. Now I'm only getting between 13.8 and 14.2 MPG and pretty much the same driving habits. Does the CAI make that huge a difference. I am surprised with all the bashing I see on them but I'm probably buying another. Has anyone experienced anything similar, just curious.