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Hi fellow Jeep friends I have a 4L,2003 TJ with 3" Suspension lift and 33x12.5R15....Tyers and diff ratios is 4.56 front and back.(I know about guys that run 4.88 ratios and 35" Tyers and still they get 8km/L,with a 6" body lift)
1.My Question is what is the correct ratios for this Jeep to get 7.5....to 8km/L....on Feul at the moment I don't even get 3km/L....and would it be possible to fit something like a "race chip" to gain more kw...some guys say bigger injectors.....vehicle have enough power....but heavy on fuel.Thanks for your help.I appreciate it.
 
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