Vacuum assist is the big round thing your master cylinder is attached to. It can be seen with the car on the ground. Any vacuum line that's unhooked will affect your cars idle.
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2008 GT/CS 5 Speed
Control Arms, Prothane MM's
Aluminum DS, McLeod RST/Fidanza FW
FRPP Ceramic Shorties
FRPP Whipple HO
Built Motor
Whipple Crew
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