AFE Rebel Series XD 4"DPF-Back Exhaust 17-19 GM 6.6L Duramax L5P Exhaust Tip:Black Tip simple as that

simple as that

Replace your plastic WIF Sensor with this Billet Aluminum Plug

This leads to much shorter lifetime and often causes the ball joints popping out when the supension starts to droop out

A commonly overlooked transmission upgrade is the intermediate shaft

AFE Rebel Series XD 4"DPF-Back Exhaust 17-19 GM 6.6L Duramax L5P Exhaust Tip:Black Tip simple as thatKeep all of your emissions intact and add some style to your L5P with AFE's DPF Back exhaust system. Simple Installation: All systems use factory mounting locations providing stability and hassle free installation. Leak Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip