MSD Ignition Coil 1999 2007 GM L Series Truck engines, Black, 8 Pack 826383 front disc Use for Nitrous 49449 FBHB Use for Nitrous 6 V8 1997 2002 Ford E 150 Econoline 330 5 78 8 V 2005 2009 Chevrolet Express 3500 4 8 V 2005 2009 GMC Envoy 3 78 8 V 2001 2006 Chevrolet Silverado 1500 HD 2001 2009 Chevrolet Silverado 2500 HD 4 8 V 2001 2004 Chevrolet Silverado 2500 2001 2006 Chevrolet Silverado 3500 4 8 V 2001 2006 Chevrolet Suburban 2500 4 8 V 2001 2007 Chevrolet Tahoe 2001 2006 GMC Sierra 1500 HD 2001 2006 GMC Sierra 1500 4 8 V 2001 2009 GMC Sierra 2500 HD 4 8 V 2001 2004 GMC Sierra 2500 2001 2006 GMC Sierra 3500 4 8 V 2001 2006 GMC Yukon XL 1500 3