Holden Commodore VL RB30ET + Garrett T25 T28 Turbo Oil Drain Hose Kit
Oil Drain System for RB30ET Upgrading to T25 / T28 Turbos Upgrading the Holden VL RB30ET to a Garrett T25 or T28 turbo is a popular option for improved boost response and modern turbocharger reliability. Because T25/T28 turbos use a different drain flange pattern compared to the original RB30ET Garrett T3, the factory oil drain pipe cannot be reused. This Gryphontek turbo oil drain hose kit includes a CNC-machined T25/T28 drain flange, a heat-resistant NBR oil drain hose, mild-steel fittings, a 1 mm non-asbestos gasket, and high-tensile bolts—providing a clean, reliable oil return path for both stock-mount and top-mount installations. Key Features ‣ Application: Holden Commodore VL RB30ET turbo engines‣ Turbo Compatibility: Garrett T25 / T28 turbos‣ Upgrade Requirement: OEM RB30ET oil drain cannot be reused due to different T25/T28 flange and drain geometry‣ Hose Construction: High-temperature NBR oil drain hose suitable for continuous heat exposure‣ Flange Material: 6061-T6 CNC-machin