Mazda MX5 Miata MK1 MK2 MK2.5 + Holset HE221W Turbo Oil Drain Hose Kit

Oil Drain System for Miata N/A to Holset HE221W Turbo Conversions When installing an HE221W onto a Mazda MX-5 Miata MK1 (NA), MK2, or MK2.5 (NB) originally built as a naturally aspirated engine, you must add a dedicated turbo oil drain system—since the factory N/A block offers no turbo return provisions. This Gryphontek turbo oil drain hose kit provides the correct Holset-pattern drain flange, NBR high-temperature hose, fittings, gasket, and mounting hardware required to complete a clean, leak-free oil return path. Built for both street and track Miata builds, the kit ensures proper turbo lubrication and long-term reliability with the HE221W. Key Features ‣ Application: Mazda MX-5 Miata MK1 (NA) / MK2 / MK2.5 (NB) — N/A → Turbo conversion‣ Turbo Compatibility: Holset HE221W ‣ Hose Construction: High-temp NBR oil drain hose — oil-safe, heat-resistant, flexible‣ Flange Material: 6061-T6 CNC-machined aluminum Holset-pattern drain flange‣ Fittings: Durable mild-steel oil drain fittings for