Kooks 1-3/4-Inch Long Tube Headers with High Flow Catted Y-Pipe (09-13 4.8L, 5.3L Sierra 1500)Find parts that fit my vehicle

High-Performance Header and Catted Connection Kit. The Kooks 1-3/4-Inch Long Tube Headers with High Flow Catted Y-Pipe are engineered to improve exhaust flow and engine efficiency by replacing restrictive factory components. This kit is designed specifically for 2009-2013 GM 1500 Series trucks and SUVs equipped with 4.8L and 5.3L engines.

Construction and Appearance. Made from durable 304 stainless steel, the headers utilize 1.750-inch tubing to enhance flow and longevity. The kit includes a stainless steel catted Y-pipe featuring an OEM-matched 3" x 2-3/4" outlet for precise fitment and integration.

Installation. This kit is designed for direct bolt-on installation with no modifications or drilling required in most cases; however, verifying fitment before installation is recommended. Professional installation is advised.

Warranty and Application. The product is covered by a manufacturer warranty against defects. It is specifically designed and fit-tested for 2009-2013 GM 1500 Series vehicles with 4.8L or 5.3L engines, including compatible models such as the Sierra 1500.

Application. Specifically designed for use on 2009-2013 GM 1500 Series vehicles equipped with 4.8L or 5.3L engines.

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