Review on 🚀 Rough Country Throttle Body Spacer: Perfect Fit for Jeep Wrangler TJ YJ, Cherokee XJ, Comanche | 4/6CYL | 1068 by Rod Evans

So I can't accurately assess the increase in fuel per gallon, horsepower or ride as I installed this at the same time as the long overdue set of spark plugs, wires and distributors. cover and rotor. I also cleaned the throttle body and IACV when installed. But installation was very easy and after this ROUND OF MAINTENANCE the idle has settled down a bit, throttle response was smoother and a little better and I got a significant amount of mpg. On a 3" lifter with a 31 motor, stock gears, and an EXTREMELY WEARED SPARK PLUG KIT AND CARBON THROTTLE BODY, my average went from 13mpg to 19mpg highway average. Again, I can't stress enough that I don't know what to classify as this product and what as an overdue service. But it looks good and sounds cool when you push the pedal all the way down. And at least it gave me a reason to cure my tuberculosis.