Good choice on the Spartan as the DOT/EPA just laid heavy regulations on H&S that limits removing the CAT and DPF. I have the H&S on mine but it was just before the DOT/EPA hammered them. I have a 5" downpipe back because the downpipe is hard to get to on the 6.4l engine. Looking to do an EGR delete here soon, just know there is some work involved and haven't felt like doing in this heat yet.

If I was to do it again though I think I might pick the Spartan as this is a powerstroke only product so I think the support is a little better.