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Subaru EJ20 EJ25 Turbo Oil Feed Line Kit | Garrett GT28R GT30R | 1.0mm Restrictor

Subaru EJ20 EJ25 Turbo Oil Feed Line Kit | Garrett GT28R GT30R | 1.0mm Restrictor

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Regular price $84.85 USD
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Technical Description

Precision lubrication for high-performance ball-bearing upgrades. Upgrading your Subaru EJ20 or EJ25 to a Garrett GT28R or GT30R requires more than just a bolt-on fit; it demands precise oil pressure management. Garrett’s dual ball-bearing cartridges are highly sensitive to over-oiling. This GryphonTek Signature Series Kit is the professional-grade solution, featuring a calibrated 1.0mm restrictor and motorsport-grade PTFE lines to ensure your turbo receives metered flow without compromising internal seals.

[!] Selection Guide: Match Your Engine Configuration

Category

Selection

Technical Specifications & Compatibility

Engine Type

AVCS

Includes specialized T-fittings and secondary lines to synchronize oil pressure between the cylinder head and turbo.

 

Non-AVCS

A direct, high-flow single line path optimized for EJ20/EJ25 engines.

Turbo Type

Garrett BB

1.0mm Precision Restrictor: Specifically calibrated for GT28R, GT2860R, GT2871R, GT30R, GT3071R, GT3076R.

GryphonTek Engineering

  • Ball-Bearing Pressure Protection: Features a high-precision 1.0mm restrictor fitting. This prevents high-pressure oil spikes from overwhelming internal Garrett seals, effectively eliminating Blue Smoke and oil blow-by.
  • Seamless GT Conversion: Replaces the mismatched factory hard lines with a flexible -4AN PTFE system. Specifically engineered to bridge the gap between the EJ engine block and Garrett’s specific oil inlet threads.
  • Thermal Radiant Resilience: The motorsport-grade PTFE core, wrapped in 304 stainless steel braiding, survives the intense radiant heat trapped in the Subaru’s compact engine valley without becoming brittle.
  • "Turbo Killer" Filter Delete: Mandatory block-side logic included to bypass the clog-prone factory mesh filter, ensuring a clean and constant oil supply for your Garrett investment.

Specifications & Data

Kit Included +

• -4AN PTFE Braided Oil Feed Line (Stainless Steel Braid)
• Precision Garrett-Specific 1.0mm Restrictor Fitting (-4AN Flare)
• Engine Block Oil Port Banjo Bolt (-4AN Flare)
• AVCS T-Fitting & Secondary Line (If AVCS selected)
• Copper Washers

Vehicle Compatibility +

• Make: Subaru
• Engine: 2.0L / 2.5L EJ20, EJ25 (EJ205, EJ207, EJ255, EJ257)
• Models: WRX, STI, Forester XT, Liberty GT, Legacy GT

Turbo Compatibility +

• Bolt-on factory style Garrett GT28R GT30R ball bearing turbo.

Product Specifications +

• Line Material: PTFE (Teflon) Core with 304 Stainless Steel Braid
• Restrictor Size: 1.0mm (Optimized for Garrett Ball Bearing)
• Benefit: Prevents turbo flooding, stops blue smoke, and enables 4AN braided line conversion
• Installation: 100% Bolt-on; replaces factory hard lines for GT-series conversion

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.