
Specifications
- Brand
- Gibson
- Part #
- GP131S
- UPC
- 677418005899

Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Stainless
$720.32
Gibson stainless steel performance headers for 2001-2003 Chevrolet Silverado 3500 Base 8.1L. Improves engine breathing and low-mid range power.
Key Features
- Fits 2001-2003 Chevrolet Silverado 2500 HD, 3500, Avalanche 2500, Suburban 2500, GMC Sierra 2500 HD, 3500, and Yukon XL 2500.
- Heavy duty 3/8 inch thick laser-cut port flanges resist warping and leaking.
- Constructed from durable 16-gauge 409L stainless steel tubing.
- Includes premium gaskets and hardware for installation.
- Uses OEM style connections for a direct replacement fit.
- Mandrel bent tubing ensures consistent exhaust flow.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
If you're looking to get more out of your 2001-2003 Chevrolet Silverado 3500 with the 8.1L engine, these Gibson Performance Headers are a solid option. They're designed to replace your factory exhaust manifolds, helping your engine breathe more freely. This can lead to improved horsepower and torque, especially in the low and mid-range RPMs where you use them most for towing or general driving. They're also built to help keep engine temperatures cooler, which is always a good thing for longevity and consistent performance.
Gibson builds these headers from tough 16-gauge, 409L stainless steel tubing, which holds up well over time. The port flanges are a beefy 3/8 inch thick and laser-cut, meaning they're flat and designed to prevent leaks. Installation is straightforward because they use OEM-style connections and don't require any welding. You'll also find that they fit well on both lowered and raised trucks, making them versatile for different setups. Plus, they meet EPA and CARB requirements, so they're street legal in all 50 states and won't void your factory warranty.
This set includes premium gaskets and all the necessary hardware to get them installed. They're designed to work with your stock crossover pipe, making it a direct replacement. Gibson backs these headers with a lifetime limited warranty, giving you peace of mind with your investment.
Specifications
- Brand
- Gibson
- Manufacturer Part #
- GP131S
- UPC
- 677418005899
Frequently Asked Questions
You Might Also Like
Similar products from the same category

Gibson 05-06 Ford F-250 Super Duty XL 5.4L 1-5/8in 16 Gauge Performance Header - Ceramic Coated

Gibson 02-05 Cadillac Escalade Base 5.3L 1-1/2in 16 Gauge Performance Header - Ceramic Coated

Gibson 96-98 Chevrolet C2500 Cheyenne 7.4L 1-3/4in 16 Gauge Performance Header - Stainless

Gibson 2003 Dodge Ram 2500 SLT 5.7L 1-1/2in 16 Gauge Performance Header - Stainless
Gibson 01-03 Chevrolet Silverado 3500 Base 8.1L 1-3/4in 16 Gauge Performance Header - Stainless
