Holden Colorado (2016+) RG / Z71 DPF Delete Pipe(12 6) PRODUCTION UPDATE: DUE TO HIGH DEMAND THESE SYSTEMS ARE A PRE ORDER FOR DISPATCH IN THE WEEK STARTING 14 7. SKU: M3 185 Stainless Steel DPF Delete Exhaust Replacement Pipe for Holden Colorado RG (2016+) The factory Diesel Particulate Filter (DPF) on the Holden Colorado RG is a well documented failure point. The system uses an active regeneration process to burn off soot, but excess build up can cause expensive damage and blockages over time.