The Redback 4″ Exhaust DPF Adaptor Kit is designed to interface with a DPF‑equipped 79 Series Landcruiser (2016‑on) running a Redback Extreme Duty exhaust system. It replaces the stock DPF‑back section with a 4" straight‑through pipework assembly — built from 409 stainless‑steel tubing, with 4‑bolt, 10 mm thick flange plates, heavy‑duty hanger brackets, pressed fire‑ring gaskets, and a removable ¼" NPT plug‑boss for optional EGT‑sensor installation. The kit is Australian‑made, coated in premium heat‑proof paint for corrosion and heat resistance, and backed by a 10‑year manufacturer warranty. Installation is designed to integrate cleanly with compatible Redback exhaust backbones.