• -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
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
Regular price
$110.28 USD
Regular price
Sale price
$110.28 USD
Shipping calculated at checkout.
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AU/US & MoreTailored
Customizable30-Day
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JUNE HOLIDAY SHIPPING UPDATE
Please be advised that June 17 is our final shipping date before the upcoming national holiday break.
June 17
Last Dispatch
June 18-21
No Shipping
June 22
Regular Resumes
Technical support remains active during the holiday period.

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
Vehicle Compatibility
Turbo Compatibility
Product Specifications
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.