The exhaust manifolds found in the 1999-2005 Chevrolet / GMC Pickups and SUVs were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 Shorty Style off-road headers are designed to allow the exhaust gasses to flow more freely from each 4 cylinder bank and combine in a more efficient manner. Tubing has been optimized for the 4.8L and 5.3L engines. This creates a reduction in cylinder backpressure and improved exhaust gas velocity. These improvements free up lost horsepower and torque. An added benefit is a more performance oriented exhaust sound.

This product is compatible with:

  • GMC Yukon (2001-04)
  • GMC Yukon XL 1500 (2000-04)
  • GMC Sierra (1999-05)
  • Chevy Avalanche 1500 (2002-05)
  • Chevy Silverado 1500 (1999-05)
  • Chevy Suburban 1500 (2000-04)
  • Chevy Tahoe (2000-04)

    Product Features

    • Precision machined steel flanges that provide a tight seal at the head and allows a high flow rate through the primary tubes
    • Made From High Quality T304 Stainless Steel For Strength & Durability
    • Constructed With TIG Welded CNC Machine Flange For Percision & Fitment
    • All Tubing Is Mandrel-Bent
    • Comes With Metal Gasket & EGR Fitting

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