89JeepMJ Posted January 25, 2011 Share Posted January 25, 2011 Could anyone help me out by telling me the stock exhaust specs/diameters of 89 MJ 4wd long box Link to comment Share on other sites More sharing options...
alleydog Posted January 26, 2011 Share Posted January 26, 2011 According to the NAPA walker exhaust book, it's2 1/4" all the way through. Link to comment Share on other sites More sharing options...
89JeepMJ Posted January 26, 2011 Author Share Posted January 26, 2011 Okay good thats what i thought it was, thank you :thumbsup: Link to comment Share on other sites More sharing options...
kyleag89 Posted January 26, 2011 Share Posted January 26, 2011 Hey what kind of plow set-up are you running? Link to comment Share on other sites More sharing options...
89JeepMJ Posted January 27, 2011 Author Share Posted January 27, 2011 Meyers 7ft plow Link to comment Share on other sites More sharing options...
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