Flowtech 11143FLT Exhaust Header Fits select: 2003-2013 CHEVROLET SizeILVERADO, 2003-2013 GMC SizeIERRA

Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increased exhaust velocity Heavy duty 16-gauge tubing for increased strength and durability Smooth transition, 1-7/8” diameter primary tubes are used for increased exhaust flow increasing performance and improving throttle response OE style 2-1/2” collector connects to factory exhaust head pipe with no cutting or welding TIG-welded, machined 3/8” header flange for a leak-free seal and maximum strength Premium aluminum header gaskets included Coated in high heat resistant black paint Headers are a must upgrade if you are using a cold air intake, cat-back exhaust system or tuner Fits Select: 2003-2013 CHEVROLET SILVERADO 8 Cyl 6 L 2003-2013 GMC SIERRA 8 Cyl 6 L 2003-2006 GMC YUKON XL DENALI 8 Cyl 6 L 2003,2005-2006 GMC NEW SIERRA K1500 DENALI 8 Cyl 6 L 2008 CHEVROLET TAHOE C1500 HYBRID 8 Cyl 6 L 2009-2013 CHEVROLET TAHOE HYBRID 8 Cyl 6 L 2004,2007 GMC NEW SIERRA 8 Cyl 6 L 2007-2013 GMC YUKON XL and more - add your vehicle to our fit widget to check