When upgrading the Mazda RX-7 FC3S 13B Turbo II to a Garrett T3/T4 turbo, the factory oil feed line cannot be reused safely. Aging OEM hard lines are prone to clogging, cracking, or leaking, which can cause oil starvation and turbo failure. For a reliable turbo upgrade, a new oil feed line is essential to ensure stable lubrication under boost.

This stainless braided oil feed kit is built to support Garrett T3/T4 turbos on the FC3S. Constructed with PTFE Teflon braided hose, a CNC-machined aluminum flange with 2.0mm restrictor, and high-tensile hardware, the kit provides clean, consistent oil supply while withstanding high temperatures and pressure. Available in custom line lengths to suit different turbo mounting positions.

⚠️ Note: For Mazda RX-7 FC3S with Garrett T3/T4 upgrade. Not for FD RX-7 applications.

Application

• Engine: Mazda 13B Rotary

• Vehicle: RX-7 FC3S

• Turbo: Garrett T3/T4

• Mount: Stock mount

Kit Includes

• -4AN braided oil feed line (PTFE stainless braided)

• -4AN oil feed flange with 2.0mm restrictor port

• -4AN adapter fitting for engine oil supply

• Copper crush washers (1mm thickness)

• High-tensile bolts and non-asbestos gasket

Key Features

• Designed for RX-7 FC3S 13B Turbo II with Garrett T3/T4 upgrade

• Essential when replacing stock turbo with Garrett T3/T4 to ensure proper oil supply

• 2.0mm restrictor matched for T3 T4 turbos

• PTFE stainless braided hose resists heat, oil pressure, and vibration

• CNC 6061-T6 aluminum flange with secure gasket seal

• Complete kit with all fittings, washers, and bolts included

• Custom line length available for different turbo mounting configurations

• Protects turbocharger by maintaining consistent oil flow under boost

📌 Upgrade your RX-7 FC3S with confidence—this complete oil feed kit is engineered for Garrett T3/T4 conversions. Not for FD RX-7.