engine mod is it worth it
was gonna get the gde tune for my 2015 ecodiesel but was gonna also get the s&b cold air box n mbrp bigger inter cooler pipes but wondering if its really worth the money or any difference I know the tune is a must
it is worth losing powertrain warranty? Even if you put the factory programming back in when you return to the dealer for service; the dealer can see how many times the programming has been changed and deny coverage.


