Really depends on your states emissions laws. The mouth breathers here look for specific components relating to emissions. 9/10 times they have no idea what they are looking at, rather just if it is there or not. If you are required to have DPF you can always remove the innards of it and they would never know it isn't functioning. Also a LBZ doesn't have a DPF and its a GM motor. Don't soil your truck with an ecodiesel
