Image 1 of 2 Image 2 of 2 Tbi vats delete chip $85.00 Sold Out 1989-1992 Tbi f body prom, 305 automatic with vats delete. For use in the 1228746 ecm Sold Out Added! 1989-1992 Tbi f body prom, 305 automatic with vats delete. For use in the 1228746 ecm