Edge Products 85401 CTS2 Diesel Evolution Programmer 2001-2010 &gt; GMC &gt; All Models &gt; 6.6L &gt; EO# Diesel D-541-7/13/D-541-8/D-541-10/D-541-12 ** NOTE: PRODUCT IMAGE MAY NOT BE VEHICLE SPECIFIC 1994-2010 &gt; Ford &gt; All Models &gt; 6.4L 6.0L 7.3L &gt; EO# Diesel D-541-7/13/D-541-8/D-541-10/D-541-12 2001-2010 &gt; Chevrolet &gt; Duramax &gt; 6.6L &gt; EO# Diesel D-541-7/13/D-541-8/D-541-10/D-541-12 2001-2010 &gt; Chevrolet &gt; Duramax &gt; 6.6L &gt; EO# Diesel D-541-7/13/D-541-8/D-541-10/D-541-12