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Stainless Works 2003-06 Chevy/GMC 6.0L (4WD only) Truck 1-3/4in Primaries 2-1/2in High-Flow Cats

Unlock your truck's full potential with these high-performance headers from Stainless Works. Made from CNC mandrel-bent 304 stainless steel, these headers feature 1-3/4" primaries, 3/8" thick CNC laser-cut flanges, and 2-1/2" catted leads. Designed to connect to your factory exhaust, these headers are built to last and backed by a limited lifetime guarantee.

  • CNC mandrel-bent 304 stainless steel construction
  • 1-3/4" primaries for improved flow and performance
  • 3/8" thick CNC laser-cut flanges for a precise fit
  • 2-1/2" catted leads for increased power and efficiency
Make Model Year Type
Chevrolet Silverado 1500 2003 SS
Chevrolet Silverado 1500 2004 LS
Chevrolet Silverado 1500 2004 LT
Chevrolet Silverado 1500 2004 SS
Chevrolet Silverado 1500 2005 LS
Chevrolet Silverado 1500 2005 LT
Chevrolet Silverado 1500 2005 SS
Chevrolet Silverado 1500 2006 LT
Chevrolet Silverado 1500 2006 SS
GMC Sierra 1500 2003 Denali
GMC Sierra 1500 2004 Denali
GMC Sierra 1500 2005 Denali
GMC Sierra 1500 2005 SLE
GMC Sierra 1500 2005 SLT
GMC Sierra 1500 2006 Denali
GMC Sierra 1500 2006 SLE
GMC Sierra 1500 2006 SLT
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