The Spectre 11252 Throttle Body Spacer is designed specifically for Chevrolet trucks and SUVs from 1986 to 1995 with a 4.3L, 5.0L, or 5.7L engine. This spacer helps to improve air and fuel delivery by increasing the volume of air entering the throttle body, resulting in improved performance and efficiency. Made by Chevrolet, this high-quality throttle body spacer is a reliable and durable component for enhancing the overall performance of your vehicle.