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Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.
Achieve precise ignition control with the Holley 558-117 Universal MPFI Coil-On-Plug (COP) Main Harness. This versatile harness is designed to facilitate the integration of modern coil-on-plug ignition systems into a wide range of applications, offering flexibility and reliability.
Whether you're building a custom hot rod, restomodding a classic, or upgrading a performance vehicle, the Holley 558-117 harness provides the foundation for a superior ignition setup. Trust Holley's expertise for your wiring needs. Find the Holley 558-117 Universal MPFI Coil-On-Plug Main Harness at GGCRACING.
Other popular Holley products customers consider together:
Holley is the legendary American carburetor and fuel-injection brand — over 100 years of induction history. From the iconic 4150 four-barrel to today's Sniper EFI conversions, Holley remains the choice for muscle car restorations, Pro Mod, and gasser builds.
Achieve precise ignition control with the Holley 558-117 Universal MPFI Coil-On-Plug (COP) Main Harness. This versatile harness is designed to facilitate the integration of modern coil-on-plug ignition systems into a wide range of applications, offering flexibility and reliability.
Whether you're building a custom hot rod, restomodding a classic, or upgrading a performance vehicle, the Holley 558-117 harness provides the foundation for a superior ignition setup. Trust Holley's expertise for your wiring needs. Find the Holley 558-117 Universal MPFI Coil-On-Plug Main Harness at GGCRACING.
Other popular Holley products customers consider together: