Isn't the CP3 the more reliable unit compared to the newer CP4?
I am just asking for future references.
2015 cummins 2500 crew cab w/ rf 68 s&b cold air,mbrp stainless 4" w/ muffler,mm3 tuner from double r diesel,xdr throttle valve delete,xdr egr delete,shibby plug kit, traxda 3.5"/2" lift, 20x12 hostile wheels w/35" amp at/g tires
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