aFe 49-44002 Mach Force Exhaust System 2006-2007 &gt; Chevrolet &gt; Silverado &gt; 6.6L V8 &gt; (HD) Turbo Diesel (LLY/LBZ) 2006-2007 &gt; GMC &gt; Sierra &gt; 6.6L V8 &gt; (HD) Turbo Diesel (LLY/LBZ) ** NOTE: PRODUCT IMAGE MAY NOT BE VEHICLE SPECIFIC