Wehrli 11-15 Chevrolet 6.6L LML Duramax 3in Down Pipe (V-Band Style)Replace the restrictive crushed factory down pipe with this full 3" down pipe. For use with factory turbo or factory style drop in turbo. 2015. 5 and newer LML have a 3 bolt flange exhaust system, this down pipe will only work if you use a 2011 2014 style exhaust system with v band connection. Or you can use our 3 Bolt Flange Stainless Down pipe PN: WCF100705 This Part Fits: Year Make Model Submodel 2015 Chevrolet Silverado 2500 HD High Country 2011