NGK variable pitch resistor cables provide uniform resistance and ensure outstanding electrical conductivity in high-quality cables. Outer EPDM/silicone jacket and inner insulation contain high voltage currents for excellent dielectric strength. NGK variable pitch magnetic core cables produce the necessary impedance to suppress interference throughout the entire frequency spectrum for exceptional EMI/RFI noise suppression. OE or better specified spark plug and distributor boots ensure the highest quality fit, performance and durability in every application. Spark plug boots are glued to NGK cable with a silicone sealer for a watertight seal. Stainless steel terminals utilizing up to 3 serrated crimps bite into cable jacket and inner insulation for the highest terminal retention strength (wherever possible). Locking C-shaped spring clip with corrosion-resistant plating ensures a secure and positive spark plug terminal connection. 4 Wires (Coil Lead N/R)

LIMITED LIFETIME WARRANTY: See package for details

The NGK Part 4390 spark plug wire set is engineered to deliver reliable electrical performance for Subaru Impreza models from 1993 and 1994. Featuring high-quality variable pitch resistor cables, this set ensures uniform resistance throughout, resulting in consistent spark delivery. The outer EPDM and silicone jacket provide excellent dielectric strength while protecting against high voltage currents, enhancing durability and safety under demanding conditions.
NGK's magnetic core cables are designed to produce the precise impedance needed to suppress electromagnetic interference (EMI) and radio frequency interference (RFI), effectively reducing noise and improving overall engine performance. The set includes four wires, each equipped with OE or better specified boots that guarantee a secure fit and long-lasting performance. The spark plug boots are sealed with silicone sealer to ensure a watertight connection, preventing moisture ingress which can cause misfires or corrosion.
Stainless steel terminals with up to three serrated crimps provide exceptional terminal retention by biting into the cable jacket and insulation, ensuring a robust connection that withstands engine vibrations. The locking C-shaped spring clips, which are corrosion-resistant, offer a positive and secure attachment to the spark plugs, maintaining optimal contact over time. This set is backed by a limited lifetime warranty, reflecting NGK's commitment to quality and reliability. Designed specifically for Subaru Impreza models from 1993 and 1994, these wires meet or exceed OE standards, providing a perfect fit and dependable performance for your vehicle’s ignition system.

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