Aeroflow Fuel Rails fits Mazda Series 4,5 13B Billet EFI Fuel Rails - Red Transmission Components These inverted flare nuts are

These inverted flare nuts are precision machined which are used for building custom length brake lines

Special Air Duct

especially with three -10ORB ports fitted along each fuel rail

Rocker Arm Studs: Â 7/16"-14

Aeroflow Fuel Rails fits Mazda Series 4,5 13B Billet EFI Fuel Rails - Red Transmission Components These inverted flare nuts arePart Number : AF64 2213R Fits Mazda Series 4,5 13B Billet EFI Fuel Rails Red Suit 14mm Full Length Fuel Injectors, 8ORB Ports New design Aeroflow Performance Mazda rotary fuel rail to suit 13B engines in series 4 and 5 Mazda RX7. The high flow primary and secondary fuel rails have an integrated one piece bracket design. Each rail features female 8ORB ports on each end and a large internal bore to support all necessary engine power requirements.