aFe 49-90002 4" Exhaust Tip 2001-2004 &gt; Chevrolet &gt; Silverado &gt; 6.6L V8 &gt; (HD) Turbo Diesel (LB7) 2002-2004 &gt; Chevrolet &gt; Silverado &gt; 6.6L V8 &gt; (HD) Turbo Diesel Offroad Only (LB7) 2004-2005 &gt; Chevrolet &gt; Silverado &gt; 6.6L V8 &gt; (HD) Turbo Diesel (LLY)