This is a Prom chip AMYB 0675 that fits the 1988 Camaros and Firebirds with the THROTTLE BODY 5.0 V8 and T5 MANUAL transmission and may fit other GM cars check your application before purchasing.  This item is in good condition and was tested good before it was listed. Item comes as shown.Thanks for looking!! Buyer to pay $15.00 for shipping in the U.S.