• Turbo oil feed line kit for Mazda MX-5 Miata early MK1 with Garrett GBC20-300 / GBC22-350 journal-bearing turbo conversion, 4AN PTFE stainless braided hose with 1.8 mm restricted adapter fitting and copper crush washer.
  • PTFE Teflon stainless braided hose for turbo, heat-resistant and durable
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Mazda MX-5 Miata NA/NB Garrett GBC20 GBC22 Turbo Oil Feed Line Kit | 1.8mm Restrictor

Mazda MX-5 Miata NA/NB Garrett GBC20 GBC22 Turbo Oil Feed Line Kit | 1.8mm Restrictor

$82.55 USD
$82.55 USD
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Technical Description

This turbo oil feed line kit is designed for Mazda MX-5 Miata NA (MK1) and NB (MK2/MK2.5) models being converted from naturally aspirated to turbo using a Garrett GBC20-300 or GBC22-350 turbocharger.

Garrett GBC20-300 and GBC22-350 turbochargers use oil-cooled, journal bearing center housings. This kit provides the pressurized oil supply connection from the Miata engine to the turbocharger.

The kit combines an application specific engine oil fitting, a flexible -4AN PTFE stainless braided line, and a GBC specific turbo inlet fitting with an integrated 1.8 mm restrictor.

Early NA models use the exhaust-side engine oil port with a direct fit M10 adapter. Late NA and NB models take the turbo oil supply from the oil pressure sensor location and use a 1/8 BSPT sensor tee.

Key Features

  • Configured for Garrett GBC20-300 and GBC22-350 turbochargers
  • Application specific engine fitting for Early NA, Late NA, and NB oil feed arrangements
  • Flexible -4AN PTFE oil line with a 304 stainless steel outer braid
  • GBC specific turbo inlet fitting with an integrated 1.8 mm restrictor

Not sure which Miata application or turbo configuration you need? View the Mazda Miata NA/NB Turbo Line Fitment Guide before ordering.

Specifications & Data

Kit Included +

• -4AN PTFE stainless braided turbo oil feed line
• GBC specific turbo oil inlet fitting with integrated 1.8 mm restrictor
• Copper sealing washers
• Installation hardware

Vehicle Compatibility +

• Make: Mazda
• Models: Miata / MX-5 MK1 (NA), MK2/MK2.5 (NB)
• Engines: 1.6L (B6) / 1.8L (BP) Naturally Aspirated to Turbo conversion
• Year: 1989–2005

Turbo Compatibility +

• Turbo: Garrett GBC-Series GBC20-300, GBC22-350

Product Specifications +

• System Type: Pressurized turbo oil feed system
• Oil Feed Line Size: -4AN
• Inner Hose Material: PTFE
• Outer Braid Material: 304 stainless steel
• Oil Restrictor Size: 1.8 mm
• Turbo Connection: GBC specific oil inlet fitting

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Proudly exported to 75+ countries. All orders are dispatched via DHL Express, FedEx, or EMS from our Taiwan hub.

  • AU / USA: 3-5 Business Days.
  • Rest of World: 5-12 Business Days.
  • Tracking: End-to-end tracking number provided within 48H.
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*Other Countries: All import duties and carrier processing fees are the buyer's responsibility.

30-Day Returns & Warranty +

30-Day Returns: Return or exchange within 30 days of delivery. (Shipping at buyer's expense).

Limited Lifetime Warranty: Covers manufacturing defects. (Excludes racing misuse).

GryphonTek Engineering — Precision Fitment. Global Delivery.