Kodiak/Topkick upgrades?
#2
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check out www.pacificp.com they have done a couple of kodiaks. on my old one I did programmer by ppe 5" exhaust from down tube out at a muffler shop with aero turbine muffler, as for the exhaust there is a kn filter but they breathe really good with the setup now. mine was an 07.5 with the LMM series motor.