Holley EFI’s plug-and-play alternator harnesses are designed for late-model engines with Pulse Width Modulation (PWM) alternators, these harnesses can be used with OEM alternators.
NOVEMBER 2026 RPM MAG RELEASED!
BIG CUBIC INCHES. INSANE BOOST. TIRE-SHREDDING ATTITUDE. AND ENOUGH HORSEPOWER TO MAKE YOUR HEART SKIP A BEAT! Think you've seen...
































































