• Turbo Oil Feed Return Line Kit for Mazda MX5 Miata Early MK1 engine 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 6258 6758 Complete Oil Feed & Return Kit

Mazda MX-5 Miata (NA/NB) BorgWarner EFR 6258 6758 Complete Oil Feed & Return Kit

$110.28 USD
$110.28 USD
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Technical Description

The total lubrication fix for elite BorgWarner EFR conversions. Upgrading your naturally aspirated Miata to a BorgWarner EFR 6258 or 6758 requires a perfectly balanced lubrication loop. Most DIY projects fail due to mismatched fittings or "Double Restriction" that starves the bearings. This GryphonTek Signature Series Kit provides a coordinated, professional-grade system that handles both delivery and unrestricted return—tailored specifically to your Miata’s chassis year.

[!] Selection Guide: Match Your Chassis Year

Selection

Year / Engine

Oil Feed Source

Engine Side Fitting

Early NA (MK1)

1989–1993 (1.6L)

Exhaust-Side Port

Direct-Fit M10 Adapter

Late NA (MK1)

1994–1997 (1.8L)

Pressure Sensor Port

Precision 1/8 BSPT Tee

NB (MK2 / MK2.5)

1998–2005 (1.8L)

Pressure Sensor Port

Precision 1/8 BSPT Tee
  • EFR Balanced Flow: Features a non-restricted feed path to match EFR's internal metering, paired with a high-flow EFR-specific drain to stop back-pressure and "Blue Smoke."
  • Year-Specific Integration: Precision adapters bridge factory oil sources to EFR threads, eliminating sourcing guesswork and preventing block thread damage.
  • Extreme Thermal Resilience: Combines motorsport-grade PTFE braided feed lines with reinforced NBR return paths to survive the intense radiant heat of the Miata's "Hot Side."
  • Harmonic Defense: Flexible plumbing architecture absorbs B6/BP vibrations, preventing the fatigue cracks common in rigid hard-pipe setups.

Specifications & Data

Kit Included +

• -4AN High-Temp PTFE Braided Oil Feed Line
• Precision EFR-Specific Non-Restricted Inlet Fitting
• Year-Specific Block Adapter Set (M10 or 1/8 BSPT Tee)
• High-Temp Reinforced NBR Oil Drain Hose
• 6061-T6 Billet Aluminum EFR Drain Flange
• Interface N-8092 Non-Asbestos Gasket
• Full Hardware Kit: High-Torque Clamps, and Copper 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 +

• Materials: PTFE / 304 Stainless Braid / 6061-T6 Billet / Reinforced NBR
• Flow Logic: Non-Restricted Feed (Matches EFR Internal Restrictor)
• Benefit: Corrects oiling alignment and stops "Blue Smoke" seal-leak issues
• Installation: 100% Bolt-on to block/turbo; requires pan tap for return

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 +

We’ve optimized our tax process for core markets to ensure zero hidden fees:

USA MARKET

All-inclusive pricing. No hidden duties or extra fees at delivery.

AUSTRALIA

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.