2014 - 2019 Chevorlet SUBURBAN 5.3l v8. 2014 - 2019 Chevorlet SILVERADO 1500 5.3l v8. 2015 - 2019 Chevrolet TAHOE 5.3l v8. 2014 - 2018 GMC SIERRA 1500 5.3l v8. 2014 - 2016 GMC YUKON 5.3l v8. Throttle Body Spacer bolts in front of the throttle body to cause a turbulent spinning action of the incoming air as it passes through the throttle body.
