if you are installing a new plenum and throttle body, the new parts should have come with the required gaskets.... if not, then any auto parts store should have the gaskets you need.... i'm not real sure about your specific year car, but my '02 does not need/have a gasket for the plenum ( where it attaches to the intake ) there is some sort of built-in rubber seal or gasket etched in already....but, there is a gasket needed where the T/B attaches to the plenum, where the EGR valve attaches to the plenum and .... i can't remember... there is one other place that needs a gasket...good luck...