you don't its hard-programmed into the vehicle PCM. It's IMPOSSIBLE to delete
The 2011 Chevrolet Silverado-2500HD has 16 valves.
The 2012 Chevrolet Silverado-2500HD has 16 valves.
The 2013 Chevrolet Silverado-2500HD has a V8 engine.
The 2001 Chevrolet Silverado-2500HD has 16 valves.
The 2007 Chevrolet Silverado-2500HD has 16 valves.
The 2005 Chevrolet Silverado-2500HD has 16 valves.
The 2002 Chevrolet Silverado-2500HD has a V8 engine.
The 2010 Chevrolet Silverado-2500HD has 16 valves.
The 2012 Chevrolet Silverado-2500HD has a V8 engine.
The 2014 Chevrolet Silverado-2500HD has 16 valves.
The 2004 Chevrolet Silverado-2500HD has 16 valves.
The 2006 Chevrolet Silverado-2500HD has 16 valves.