AMP Research 20072013 Chevy Silverado 1500 Extended/Crew PowerStep XL

2008-2009 Chevrolet Silverado 1500 LS GAS Crew Cab Pickup; 2007-2009 Chevrolet Silverado 1500 LT GAS Crew Cab Pickup; 2007-2009 Chevrolet Silverado 1500 LTZ GAS Crew Cab Pickup; 2007-2013 Chevrolet Silverado 1500 WT GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 2500 HD LT GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 2500 HD LTZ GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 2500 HD WT GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 3500 HD LT GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 3500 HD LTZ GAS Crew Cab Pickup; 2007-2014 Chevrolet Silverado 3500 HD WT GAS Crew Cab Pickup; 2007-2008 GMC Sierra 1500 Denali GAS Crew Cab Pickup; 2008-2009 GMC Sierra 1500 SL GAS Crew Cab Pickup; 2007-2009 GMC Sierra 1500 SLE GAS Crew Cab Pickup; 2007-2009 GMC Sierra 1500 SLT GAS Crew Cab Pickup; 2007-2013 GMC Sierra 1500 WT GAS Crew Cab Pickup; 2007-2014 GMC Sierra 2500 HD SLE GAS Crew Cab Pickup; 2007-2014 GMC Sierra 2500 HD SLT GAS Crew Cab Pickup; 2007-2014 GMC Sierra 2500 HD WT GAS Crew Cab Pickup; 2014 GMC Sierra 3500 HD Denali GAS Crew Cab Pickup; 2007-2014 GMC Sierra 3500 HD SLE GAS Crew Cab Pickup; 2007-2014 GMC Sierra 3500 HD SLT GAS Crew Cab Pickup; 2007-2014 GMC Sierra 3500 HD WT GAS Crew Cab Pickup