Stop in for a cup of coffee

dukeboy_318 said
also, with certain tuners, you can shut that DPF system down. It wont hurt the engine at all. Only catch is you must have the right tuner and keep it so you can toggle it back on for emissions testing if required.

You turn off the DPF, you have to delete the DEF canister. It will plug with soot and cost about 10 grand to replace.