Universal 4BBL 1000CFM 4150 Flange Throttle Body - Hard Core Gray 1998-pontiac-firebird-esi4271216 Because these mufflers are so

Because these mufflers are so aggressive

The system utilizes the factory exhaust hangers for a quick and easy installation and the large 2

can lead to catastrophic failure when external hydrocarbons cause uncontrolled overspeeding

Each of these products has no less than 2200ppm of zinc and phosphorus for anti wear

a bowtie timing chain cover

Universal 4BBL 1000CFM 4150 Flange Throttle Body - Hard Core Gray 1998-pontiac-firebird-esi4271216 Because these mufflers are soHolley's new 1000 CFM throttle body shares the same air entry area design that powers every NASCAR Sprint Cup Series car. The throttle body features integrated throttle position, idle air control, and intake air temperature sensors. Ford and GM transmission kick down levers as well as all necessary vacuum ports.