I've got a 99 Tahoe , stainless headers , Magnaflow 2 in 2 out muffler , stainless dual pipes out the bumper , K&N filter charger , Hypertech Max progammer . Sounds tame at low speed but roars and slams you back in the seat when you nail it . Also gets much better MPGs when driven sanely . Keep your tire preasure up , use synthetic oil and other lubricants .