Shorty Headers for 08-13 Silverado Sierra 5.3L | Natural

Features For 2008-2013 Chevy/GMC trucks with 5.3L V8 Shorty design for power gain from idle to mid-range RPM Gains 18HP and 20 lb-ft torque OE style ball socket collector connects to factory exhaust head pipe Mitered merge collectors to maximize exhaust velocity and scavenging Fully mandrel bent tubes made of 16-gauge, 409 stainless steel Head flanges laser-cut from 3/8-inch thick steel plates Flanges flattened by hydraulic press for precise and leak-free seal Flanges chrome plated for corrosion resistance All joints TIG welded for resistance against cracking and wearing Tech Specs Header Type Shorty / Short Tube Primary Diameter 1-3/4 inches (45mm) Collector Diameter 2-1/2 inches (64mm) Head Flange Thickness 3/8 inches (9.5mm) Pipe Thickness 16 gauge (1.5mm) Material 409 Stainless Steel Finish Natural Compatibility Applications 2008-2013 Chevrolet Silverado 1500 5.3L V8 2008-2013 GMC Sierra 1500 5.3L V8