2016 FOR GMC SIERRA 3500 HD 6.6L DIESEL. 2016 FOR GMC SIERRA 2500 HD 6.6L DIESEL. 2016 FOR CHEVROLET SILVERADO 3500 6.6L DIESEL. 2016 FOR CHEVROLET SILVERADO 2500 6.6L DIESEL. This allows for quicker turbo spool.
Excellent quality and it’s perfect for my truck and it fit as described no issue just read the directions and it goes smoothly and my truck runs and breaths a lot better and best bang for your buck .