# Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Stainless Every Gibson Performance Header is Dyno-tuned and engineered to deliver more usable horsepower and torque at low and mid-range RPM highway speeds. Improves engines ability to breathe and cooler operating engine temperature. Designed as a direct replacement for the factory manifolds, using the stock crossover pipe. They are well suited for lowered and raised vehicles, street and off-road. 50 State Street legal. Meets EPA and CARB requirements. Will not affect the factory warranty. No welding required. Uses OEM style connections. 3/8 in. Heavy Duty Laser Cut Port Flanges- No Warping or Leaking. Premium Gaskets and Hardware included. Backed by a Lifetime Limited Warranty. - Heavy Duty 3/8 in. Thick Laser Cut Port Flanges - Heavy Duty 409L Stainless 16 Gauge Tubing - Premium Gaskets and Hardware - Uses OEM Style Connections - Mandrel Bent Tubing - No Welding Required This Part Fits: Year Make Model Submodel 2002-2003 Chevrolet Avalanche 2500 Base 2001-2003 Chevrolet Silverado 2500 HD Base 2001-2003 Chevrolet Silverado 2500 HD LS 2001-2003 Chevrolet Silverado 2500 HD LT 2001-2003 Chevrolet Silverado 3500 Base 2001-2003 Chevrolet Silverado 3500 LS 2001-2003 Chevrolet Silverado 3500 LT 2001 Chevrolet Suburban 2500 Base 2001-2003 Chevrolet Suburban 2500 LS 2001-2003 Chevrolet Suburban 2500 LT 2002-2003 GMC Sierra 2500 HD Base 2001-2002 GMC Sierra 2500 HD SL 2001-2003 GMC Sierra 2500 HD SLE 2001-2003 GMC Sierra 2500 HD SLT 2003 GMC Sierra 2500 HD WT 2002-2003 GMC Sierra 3500 Base 2001-2002 GMC Sierra 3500 SL 2001-2003 GMC Sierra 3500 SLE 2001-2003 GMC Sierra 3500 SLT 2001-2003 GMC Yukon XL 2500 SLE 2001-2003 GMC Yukon XL 2500 SLT ## Details - **Price:** 2087.51 CAD - **Vendor:** Gibson - **Type:** Headers & Manifolds ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 2087.51 CAD | In stock | --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/gibson-01-03-chevrolet-silverado-3500-base-8-1l-1-3-4in-16-gauge-performance-header-stainless) > Updated: 2026-06-28