BBK 4047 1-3/4" Shorty Headers for 14-18 Chevy/GMC Truck/SUV 1500 5.3L/6.2L V8

Vehicle Fitment

• 2014-2018 Chevrolet Silverado 1500 -- 5.3L V8 / 6.2L V8
• 2014-2018 GMC Sierra 1500 -- 5.3L V8 / 6.2L V8
• 2015-2018 Chevrolet Suburban -- 5.3L V8
• 2014-2018 Chevrolet Tahoe -- 5.3L V8 / 6.2L V8
• 2015-2018 GMC Yukon XL -- 5.3L V8
• 2014-2018 GMC Yukon -- 5.3L V8 / 6.2L V8
• 2014-2018 Cadillac Escalade -- 6.2L V8
• 2014-2018 Cadillac Escalade ESV -- 6.2L V8
• 2019 Chevrolet Silverado 1500 LD -- 5.3L V8 / 6.2L V8
• 2019 GMC Sierra 1500 Limited -- 5.3L V8 / 6.2L V8

Fitment Notes

• Fits both 2WD and 4WD models
• Does NOT fit 2019+ redesigned Silverado/Sierra -- see BBK 4048
• Does NOT fit 2500HD or 3500HD models
• Factory OEM dome gaskets are reused during installation
• Direct bolt-on -- compatible with factory or aftermarket cat-back exhaust systems
• NOT CARB approved -- not legal for use on emissions-controlled vehicles in California

Features

• Shorty tuned-length exhaust header design -- direct replacement for factory exhaust manifolds
• 1-3/4" (1.750") CNC mandrel-bent primary tubes for maximum exhaust flow
• 3/8" thick laser-cut mounting flanges for warp-free sealing
• Titanium ceramic coating for heat resistance and corrosion protection
• Estimated 10-15 horsepower increase over stock exhaust manifolds
• Improved exhaust tone -- throaty V8 sound
• Pressure-tested to ensure leak-free operation
• Designed, built, and tested in the USA

Specifications

• Part Number: 4047
• Brand: BBK Performance
• Type: Shorty Tuned-Length Exhaust Headers
• Quantity: Set of 2 (Left and Right)
• Primary Tube Diameter: 1-3/4" (1.750")
• Primary Tube Gauge: 16-Gauge
• Flange Thickness: 3/8" (0.375")
• Collector Port Diameter: 2.63"
• Collector Attachment: 3-Bolt Flange
• Material: Mild Steel
• Finish: Titanium Ceramic
• Made in USA: Yes
• CARB Approved: No
• Warranty: 1 Year

Included Components

• Shorty exhaust headers (2 -- left and right)
• Header gaskets (2)
• Header bolts (12)
• Collector flange studs, nuts, and washers (6 sets)

Product Description

The BBK 4047 is a set of 1-3/4" shorty tuned-length exhaust headers designed for 2014-2018 GM K2XX platform full-size trucks and SUVs equipped with the 5.3L or 6.2L Gen V V8 engine, including the Chevrolet Silverado 1500, GMC Sierra 1500, Tahoe, Yukon, Suburban, Yukon XL, Cadillac Escalade, and Escalade ESV, as well as the 2019 carryover Silverado 1500 LD and Sierra 1500 Limited models. These headers replace the restrictive factory cast-iron exhaust manifolds with 16-gauge CNC mandrel-bent primary tubes and 3/8" thick laser-cut mounting flanges, delivering an estimated 10-15 horsepower increase through improved exhaust flow and reduced backpressure. The 3-bolt collector flange design connects directly to the factory catalytic converters and is compatible with any factory or aftermarket cat-back exhaust system. Each header is finished in a titanium ceramic coating for superior heat resistance, corrosion protection, and underhood appearance. The set is pressure-tested at the factory to ensure leak-free operation and includes all necessary gaskets and mounting hardware. Factory OEM dome gaskets at the head are reused during installation. Also available in polished silver ceramic finish as part number 40470. These headers are not CARB approved and are not legal for sale or use on emissions-controlled vehicles in California. Designed, built, and tested in the USA with a 1-year manufacturer warranty.