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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
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Description
Gibson 99-01 Chevrolet Silverado 1500 Base 4.8L 1-5/8in 16 Gauge Performance Header - Ceramic CoatedEvery 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
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.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999-2001 | Chevrolet | Silverado 1500 | Base |
| 1999-2001 | Chevrolet | Silverado 1500 | LS |
| 1999-2001 | Chevrolet | Silverado 1500 | LT |
| 1999-2000 | Chevrolet | Silverado 2500 | Base |
| 1999-2000 | Chevrolet | Silverado 2500 | LS |
| 1999-2000 | Chevrolet | Silverado 2500 | LT |
| 2000-2001 | Chevrolet | Suburban 1500 | Base |
| 2000-2001 | Chevrolet | Suburban 1500 | LS |
| 2000-2001 | Chevrolet | Suburban 1500 | LT |
| 2000-2001 | Chevrolet | Tahoe | Base |
| 2000-2001 | Chevrolet | Tahoe | LS |
| 2000-2001 | Chevrolet | Tahoe | LT |
| 1999-2001 | GMC | Sierra 1500 | SL |
| 1999-2001 | GMC | Sierra 1500 | SLE |
| 1999-2001 | GMC | Sierra 1500 | SLT |
| 1999-2000 | GMC | Sierra 2500 | SL |
| 1999-2000 | GMC | Sierra 2500 | SLE |
| 1999-2000 | GMC | Sierra 2500 | SLT |
| 2000-2001 | GMC | Yukon | SLE |
| 2000-2001 | GMC | Yukon | SLT |
| 2000-2001 | GMC | Yukon XL 1500 | SLE |
| 2000-2001 | GMC | Yukon XL 1500 | SLT |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Denim feels thin but soft
Size: 32W x 32L, Color: All My Days Selvedge
The denim seems thinner than from years ago. 100% cotton feels soft. Fit me same as other stretchy 505 that are made with elastine. Waist size is fine. Haven't washed them yet. Yes, the price is high, but I like the 100% cotton and will likely buy more selvedge jeans.
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Reviewed in the United States on January 1, 2026
★★★★★ 5
100 cotton
Size: 33W x 32L, Color: Midnight Selvedge
These are great, just keep in mind that 100% cotton is not the same as 99 cotton 1 elastane, so size up if you tend to be in between mesures at waist.
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Reviewed in the United States on January 15, 2026
★★★★★ 4
A little pricey for what you get.
Size: 34W x 30L, Color: All My Days Selvedge
I like them.
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Reviewed in the United States on December 20, 2025
★★★★★ 5
Great buy
Size: 40W x 30L, Color: Midnight Selvedge
Great buy
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Reviewed in the United States on February 18, 2026
★★★★★ 2
Jeans size
Size: 31W x 30L, Color: Midnight Selvedge
Too small in waist.
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Reviewed in the United States on November 17, 2025