• Turbo oil and water line kit for Mazda Miata early MK1 with BorgWarner EFR 6258 6758 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 & Water Line Kit

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

$134.99 USD
$134.99 USD
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Technical Description

This complete turbo oil and water 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 combines the pressurized engine to turbo oil supply, the gravity oil return to the engine oil pan, and the coolant connections for the EFR bearing housing. Application specific engine fittings and coolant hose sizes are supplied for Early NA, Late NA, and NB installations.

BorgWarner EFR turbochargers incorporate the required oil restriction inside the bearing housing. This kit therefore uses an unrestricted external oil feed path and must not be combined with an additional inline oil restrictor.

Key Features

  • Complete oil feed, gravity oil return, and turbo coolant plumbing package for compatible EFR 6258 and 6758 installations
  • -4AN PTFE stainless braided oil feed line configured for the EFR internal oil control system
  • Reinforced 3/4 inch NBR drain hose with a CNC machined 6061-T6 EFR drain flange, gasket, and oil pan return fitting
  • Application specific engine oil fitting, reinforced coolant hoses, coolant adapters, clamps, and sealing hardware

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 unrestricted oil inlet connection
• Application specific engine side oil feed adapter or sensor tee
• CNC machined 6061-T6 aluminum EFR oil drain flange
• Reinforced 3/4 inch NBR turbo oil drain hose
• Interface N-8092 non-asbestos drain flange gasket
• Oil pan return fitting
• Application specific reinforced coolant hoses
• EFR coolant port fittings
• Vehicle side coolant fittings and adapters
• Stainless steel hose clamps
• Turbo drain flange mounting hardware
• Copper sealing washers

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

Product Specifications +

• Systems included: Turbo oil feed, oil drain/return, and coolant lines
• Oil feed hose size: -4AN
• Oil feed hose construction: PTFE inner hose with 304 stainless steel braid
• External oil feed restriction: None
• Oil drain hose size: 3/4 inch
• Oil drain hose material: Reinforced NBR
• Oil drain flange material: CNC-machined 6061-T6 aluminum
• Drain flange gasket: Interface N-8092 non-asbestos material
• NA coolant hose size: 8 mm / 5/16 inch
• NB coolant hose size: 10 mm / 3/8 inch
• Oil pan modification: Required for the turbo oil return fitting

Support & Logistics

Shipping & Global Export +

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.
Import Duties & Taxes +

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Orders under AUD 1,000 are typically tax-free. No GST surprises.

*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.