Gibson GP129S-C 1-1/2in 16 Gauge Ceramic Coated Performance Headers for Select 2002-2014 GM 5.3L

Fits select 2002-2014 Cadillac Escalade, Chevrolet Silverado/Suburban/Tahoe/Avalanche, GMC Sierra/Yukon, and Hummer H2 (5.3L).

Gibson Performance Headers (GP129S-C) are dyno-tuned to unlock usable horsepower and torque, specifically targeting low-to-mid-range RPMs for improved towing and highway performance. These headers serve as a direct-fit replacement for restrictive factory manifolds, utilizing your stock crossover pipe and OEM-style connections for a straightforward installation that requires no welding.

Construction features 16-gauge 409L stainless steel mandrel-bent tubing and heavy-duty 3/8-inch laser-cut port flanges designed to prevent warping and exhaust leaks. The silver ceramic coating provides a high-temperature barrier up to 1300°F, effectively reducing under-hood temperatures while protecting the headers from corrosion. This system is 50-state street legal, meeting all EPA and CARB requirements without affecting your factory warranty.

• Manufacturer Part Number: GP129S-C
• Tubing: 1-1/2 in. 16-gauge 409L Stainless Steel
• Flanges: 3/8 in. Thick Laser-Cut Port Flanges
• Finish: Hi-Temp Ceramic Coating (Rated to 1300°F)
• Installation: Direct bolt-on; uses OEM style connections
• Compliance: 50-State Street Legal (Meets EPA & CARB requirements)
• Included Hardware: Premium gaskets and necessary mounting hardware
• Warranty: Limited Lifetime Warranty