Hi Jim,
Those Bosch spark plugs, were they the right model for his jeep? Sorry, I had to ask, Bosch is German and I'm German....well....you get the point.
Also, what do you think of a cold air induction system like this:
http://www.pfyc.com/store/merchant.m...y_Code=GPUNDER
Would that work (appears to pass all emissions tests)? Don't know how hard it would be to install though.
I guess I should mention that I'm not looking for extreme performance increases. Just minor things that I can do to make the engine run smoother and get a little performance increase. TIA.