Holley EFI GM LS Coil Sub Harnesses Knee Guard Mount Ideal For Drain Valve

Ideal For Drain Valve

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P/N 554-128

down to fractions of a second in design speed control

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Holley EFI GM LS Coil Sub Harnesses Knee Guard Mount Ideal For Drain ValveFactory replacement coil harness for stock LS coils. Holley is quickly becoming The New Standard In EFI! Holley's HP ECU is standard equipment on the 2013 2014 Chevrolet COPO Camaro and Holley's EFI throttle body powers every NASCAR Cup Series team. Top racers are making the switch to Holley EFI every day. Racers like Tom Bailey who set three new records and took the overall event win on the 2013 Hot Rod Magazine Drag Week and John Scali who used it