Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Ceramic Coated Gibson GIBGP131S-C
Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Ceramic Coated Gibson GIBGP131S-C
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Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Ceramic Coated

Gibson
GIBGP131S-C
677418009460
Headers & Manifolds
1 Units In Stock - Ships Next Business Day
$ 1,895.52
$ 1,895.52

SKU: GP131S-C | UPC: 677418009460

Gibson 2001-2003 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Ceramic Coated

Gibson Performance Headers are dyno-tuned for 2001-2003 Chevrolet Silverado 3500, 2500HD, GMC Sierra 3500, 2500HD and compatible models with 8.1L engine. These ceramic coated headers deliver more horsepower and torque at low and mid-range RPM for highway speeds. They improve engine breathing for cooler temperatures and pair directly with the stock crossover pipe.

Key Features

  • Dyno-Tuned Design: Engineered to produce more usable horsepower and torque at low and mid-range RPM where you need it most for daily driving and towing.
  • 1-3/4in 16 Gauge Tubing: Mandrel-bent for smooth exhaust flow, reducing backpressure and enhancing engine breathing while ceramic coating reduces underhood heat.
  • Direct Bolt-On Fit: Replaces factory manifolds using stock crossover pipe with OEM-style connections, ideal for stock height, lowered or raised trucks on street or off-road.
  • 3/8in Heavy Duty Flanges: Laser-cut port flanges prevent warping or leaking, with premium gaskets and hardware included for leak-free performance.
  • 50-State Legal: Meets EPA and CARB standards, preserves factory warranty with no welding required and lifetime limited warranty backing.

Product Notes

  • Designed for easy direct replacement without modifications or welding.
  • Ceramic coating ensures durability and heat management for long-term performance.
  • Heavy-duty construction suits towing, hauling and off-road use.

Installation Notes

  • Professional installation recommended.
  • Bolts directly to factory locations using included premium gaskets and hardware.
  • Retains OEM crossover pipe and connections for straightforward setup.

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

Why Choose Gibson?

  • Proven track record in performance exhaust since 1986 with dyno-tested products.
  • Built in the USA with mandrel-bent tubing and thick flanges for reliability.
  • Lifetime limited warranty covers defects in materials and workmanship.

Frequently Asked Questions

  • Q: Will this fit my 2001-2003 Chevrolet Silverado 3500 with 8.1L engine?
    A: Yes, it provides direct bolt-on replacement for 2001-2003 Silverado 3500 Base, LS, LT and listed compatible models using factory crossover.
  • Q: What is the material and finish on these headers?
    A: Constructed from 16 gauge steel tubing with 1-3/4in diameter, finished in durable ceramic coating for heat resistance and corrosion protection.
  • Q: Does installation void my vehicle warranty or require welding?
    A: No, it uses OEM connections, includes all hardware and gaskets, and is designed not to affect factory warranty. No welding needed.

Shipping & Handling

  • Method: Ground shipping
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed with protective padding
  • Weight: 52 lbs | Shipping Dimensions: 48in x 20in x 14in

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