Plenum, Intake Manifold for 1990 ZR-1 LT5. One(1) plenum is required per engine.

NOTE: This is a USED, GM OEM part. All connector tubes and cool air purge hoses are installed

NOTE: This plenum can also be used on 91~92 models cannister purge vacuum pipe with the cannister purge pipe for the 91~95 models, see the following link: Connector, Purge Return to Plenum, NEW 90~95 [1C2]