How to make a 2000 Ford F-350 7.3L 4 door diesel blow black smoke? already have a bullydog 7.3l chip for it.?

Looking to make my ford f 350 7.3L four door lariat blow some black smoke with out buying a new chip. i have the old bullydog chip that they had for the 7.3L any ideas i already is tunned out with a 5 in magna flow exhust