Chevy GM LS3 Downdraft Idle Air Control Intake Adapter Aluminum 1-148-002 Speedmaster gilmer drive-style crankshaft pulley

Speedmaster gilmer drive-style crankshaft pulley spacers are specifically designed to help achieve proper belt alignment

Speedmaster cast iron brake calipers include calipers

These Speedmaster air filter bases are just what you need to build that custom air cleaner assembly

Increase your horsepower and torque for your ride--just bolt on these Speedmaster headers

Chevy GM LS3 Downdraft Idle Air Control Intake Adapter Aluminum 1-148-002 Speedmaster gilmer drive-style crankshaft pulleyThese idle air control motor adapters are designed to adapt the GM style idle air control motor to a our Speedmaster downdraft system. They will facilitate the installation and use of the FAST XFI or other EFI street or competition systems. They are manufactured from aluminum and have a natural finish.