Fuel Injector Inserts Suit Nissan S14 & S15 (4 Pack) 18MM C10 works extremely well in

C10 works extremely well in forced induction applications

They feature a 12-point head that accepts a deep socket to eliminate the fear of stripping the head

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Fuel Injector Inserts Suit Nissan S14 & S15 (4 Pack) 18MM C10 works extremely well inFuel Injector Inserts For Nissan S14 S15. Fuel injector seat adapters for use with Factory S14 15 manifold and aftermarket Fuel rails and Injectors. These seats come with the Aeroflow Performance S14 Fuel Rail kit AF64 2122.