These coils mount directly in place of factory style versions and accept the OEM connectors as well. Performace output is improved thanks to a careful selection of better materials and...

The Edge Evolution CTS3 is the most advanced flash tuner and digital monitor available for GM gas applications, delivering proven performance and control for Silverado, Sierra, Tahoe, Suburban, and Yukon...

Holley's cast aluminum valve covers for GM LS engines provide a fresh, refined look without the need to relocate the coils. There's no question the factory "coil on cover" design...

Black oxide finished carbon steel header bolts have a compact hex head and the flange is ideal for use where space is minimal - your typical header flange. Includes twelve...

Look no further when it's time to tune-up your LS! Bolt on legendary ignition performance with MSD's direct replacement coils. Reliable parts from the ignition leader at a price that...

Holley's tall LS valve covers are the latest addition to our extensive line of LS engine components that will add a custom touch to your engine bay and help you...