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Increase your horsepower and torque for your ride--just bolt on these Speedmaster headers
ULP and Premium FuelsAttention: Not for use on stock intake manifolds
race-bred styling will make bad intentions clear for drag race
Kit includes adapter plate to permit use of certain square bore style carburetors
they also provide your engine with cleaner air for better performance
Chevy GM LS3 Downdraft Idle Air Control Intake Adapter Aluminum 1-148-002 Increase your horsepower and torqueThese 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.
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