ATF billet aluminum Idle Air Control block off plate. Remove your IAC valve and block it off with ATF's billet aluminum IAC delete plate. This high quality billet aluminum plate blocks off the mounting location where your factory IAC (Idle Air Control) valve is located. Fits all 1987-1995 Mustangs and many more racing applications. If you need more information about this product please call ATF tech support Monday - Friday 8am - 5:30pm Eastern time 1-866-916-1155.