Flowtech 1-5/8-Inch Shorty Headers; Black Painted (02-06 4.8L, 5.3L Sierra 1500)

Improved Horsepower and Performance. Take advantage of your Sierra 1500’s full potential with these Flowtech 1-5/8-Inch Shorty Headers; Black Painted. Engineered with an improved and unrestricted design, these headers deliver more efficient exhaust flow. This increases your truck’s power and torque so you can have the power to meet the demands of your application in the most cost-effective way.

Head-Turning Sound. These Flowtech Shorty Headers are designed with a 1.62-inch diameter primary tube that produces unrestricted exhaust flow. This allows your truck to let out an aggressive tone each time you open the throttle.

Retains Factory Catalytic Converters. These Shorty Headers use your truck’s factory exhaust components, including its mid-pipe and catalytic converters. This allows you to install these headers without affecting the street-legal status of your vehicle.

Highly Durable Construction. The construction of these headers guarantees superb performance in a variety of applications. They are made of industrial-grade, cold-rolled mild steel for maximum strength. They are also mandrel-bent for smoother flow and consistent tubing diameter. Lastly, these headers’ 0.37-inch-thick flanges are TIG-welded and machined for remarkable precision and leak-free performance.

High-Quality Black Paint. These Headers are coated with premium black paint. It is formulated to resist heat and corrosion for a longer-lasting service.

Calibration Required. The installation of these Shorty Headers will not require custom calibration. The pair comes tuned so you can install and use them immediately

CARB-Approved. These Shorty Headers are 50-state smog legal and bear the CARB E.O. number D-115-16. As such, they are designed to install in pollution-controlled vehicles.

Application. These Flowtech 1-5/8-Inch Shorty Headers; Black Painted are designed to fit all 2002-2006 4.8L and 5.3L GMC Sierra 1500 models.

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