• Turbo oil feed line kit for Mazda MX-5 Miata early MK1 with BorgWarner EFR 6258 / 6758 turbo conversion, 4AN PTFE Teflon braided stainless hose, direct oil feed design for EFR turbo.
  • PTFE Teflon stainless braided hose for turbo, heat-resistant and durable
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Mazda MX-5 Miata NA/NB BorgWarner EFR Turbo Oil Feed Line Kit

Mazda MX-5 Miata NA/NB BorgWarner EFR Turbo Oil Feed Line Kit

$82.78 USD
$82.78 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 compatible BorgWarner EFR 6258 or EFR 6758 turbocharger.

The kit supplies the pressurized oil connection from the engine to the turbocharger. It includes a -4AN PTFE stainless braided oil feed line, an EFR compatible oil inlet fitting, and application specific engine side hardware for Early NA, Late NA, and NB installations.

BorgWarner EFR turbochargers incorporate the required oil restriction inside the bearing housing. This kit therefore does not add a second external restrictor to the oil feed path.

Key Features

  • Complete engine to turbo pressurized oil feed connection for compatible EFR 6258 and EFR 6758 installations
  • -4AN PTFE oil hose with a 304 stainless steel outer braid
  • EFR compatible oil inlet fitting without an additional external restrictor
  • Application specific M10 adapter or 1/8 BSPT oil pressure sensor tee supplied according to the selected Miata application

View the Mazda Miata NA/NB Turbo Oil & Water Line Fitment Guide

Specifications & Data

Kit Included +

• -4AN PTFE stainless steel braided turbo oil feed line
• EFR compatible non restricted oil inlet fitting
• Application specific engine side oil feed 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: BorgWarner EFR: 6258, 6758, 7163

Product Specifications +

• System included: Pressurized turbo oil feed
• Oil feed hose size: -4AN
• Inner hose material: PTFE
• Outer braid material: 304 stainless steel
• External oil feed restriction: None
• Turbo side fitting: EFR compatible non restricted oil inlet fitting

Support & Logistics

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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.