Hello everyone, my buddy and I put a set of injectors in my cummins about a year ago. It now smokes a little more than it did before them. I have no muffler on my truck right now. I was wodering if I put my muffler back on my truck will it hurt my motor in any way? This could be a stupid question but i didnt know. Thank you guys for all of your help.
Nick Kingsley
Nick Kingsley
