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Twisted Steel Headers

GM Silverado/Sierra 1500 14-18 V8-5.3/6.2L
Part Number: 48-44003

MSRP: $1,099.99


  • Constructed out of 16-gauge, 1-3/4" mandrel-bent stainless steel tubing for unrestricted flow
  • 4-to-1 mitered merge collectors eliminates flow-block turbulence seen on formed collectors
  • Optimized tube lengths improve flow and performance
  • 100% hand MIG-welded construction ensures optimal strength and durability
  • Potential for up to +18 horsepower and +26 lbs. x ft. of torque when combined with aFe's y-pipe (P/N 48-44004)
  • Also Fits Cadillac Escalade/GM Tahoe/Yukon/Suburban/Yukon XL (See list below)
  • Read More

Factory Mounting Locations:
These headers retain your stock catalytic converters and are a direct bolt-on installation which requires no cutting or drilling to provide a hassle-free installation.

Mitered Collectors:
4-to-1 Mitered Merge collectors decrease turbulence and increases exhaust velocity. The result is increased horsepower, torque and improved throttle response.

Heavy Duty Flanges:
A thick, 1-piece flanges prevent warpage to ensure a leak-free seal over the life of the vehicle.

Optimized Tube Lengths:
Tube lengths are optimized for true pulse control technology which improves flow and performance.

Combine With Y-Pipe:
Pair with aFe's MACH Force-Xp Y-Pipe for even better flow-through for additional performance, horsepower and fuel economy. (P/N: 48-44004)

This header is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.

aFe headers are engineered and manufactured in our Corona, California manufacturing facility.


Vehicle Applications

Year Make Model SubModel Engine Fuel
2015-2018Cadillac Escalade Includes ESV V8 6.2L Gas
2014-2018Chevrolet Silverado 1500 V8 5.3L Gas
2014-2018Chevrolet Silverado 1500 V8 6.2L Gas
2015-2018Chevrolet Suburban V8 5.3L Gas
2014-2018Chevrolet Tahoe V8 5.3L Gas
2014-2018Chevrolet Tahoe V8 6.2L Gas
2014-2018GMC Sierra 1500 V8 5.3L Gas
2014-2018GMC Sierra 1500 (Includes Denali) V8 6.2L Gas
2014-2018GMC Yukon V8 5.3L Gas
2014-2018GMC Yukon (Includes Denali) V8 6.2L Gas
2014-2018GMC Yukon XL V8 5.3L Gas
2014-2017GMC Yukon XL (Includes Denali) V8 6.2L Gas
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