So I've had mine on for a week now, and I noticed my mpg has dipped significantly.... from 13.5 - 14.0 to 9.0-9.5 :eek:

Did everyone else experience the same thing? Will a tune get this corrected?

So I've had mine on for a week now, and I noticed my mpg has dipped significantly.... from 13.5 - 14.0 to 9.0-9.5 :eek:

Did everyone else experience the same thing? Will a tune get this corrected?

Are you sure your not just having some fun testing them out? I know everytime I do a major mod, my next tank is really bad.

Experiencing similar results here but it may be as mikec@ said ;)

Are you sure your not just having some fun testing them out? I know everytime I do a major mod, my next tank is really bad.

oh I'm definitely having fun with them :D

I reset the mpg avg and have taken it easy over the last couple days, its sucking some serious gas!

good thing i have a civic for driving to work (35mpg)

I believe it will avg back out. Don't remember paying close attention when I first put them on but I'm staying around 13 and my SRT only comes out when it time to play. Had the Kooks for 8 months now.

i haven't noticed any difference

I seriously doubt that header will reduce mpg, to the contrary it should improve

How you use the header is a whole different matter :D

I'm too busy enjoying the Jeep to pay attention to the mpg :rolleyes:

Stop flooring it and you may see some MPG gains

get a B&G tune, it helps pick that up a bit, brought mine back to around 13.5 on the freeway, but since i mainly drive in the city i usually get around 11.5 if that.

I drove 3.5 hours to a race event in Ohio and averaged 17.8 mpg with the AC on going over and back. 13-14 around town is the norm now and was the norm prior to the headers. A little better now on the highway though.

Remember, its SMILES per gallon that counts, that's why you bought the Jeep in the first place. If you want to be earth friendly ride a motorcycle to work.
_o\
( )-( )

I put kooks headers on the same time as $10,000 of other mods - HHP stage II, etc. I get 'about' the same MPG around town and on the highway...Driving habits like everyone says is probably the culprit.
Good luck

I drove 3.5 hours to a race event in Ohio and averaged 17.8 mpg with the AC on going over and back. 13-14 around town is the norm now and was the norm prior to the headers. A little better now on the highway though.
Yes, but your Jeep is a freak. ;)

Yes, but your Jeep is a freak. ;)

agreed...dont even think i could get that coasting downhill everywhere i went. lol