Stainless Works 00-03 Silverado 8.1L Long Tube Headers - Uses Factory Cats (part # 81TRK), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2000–03 8.1L Silverado
Long Tube Headers
3" Collector
Made in USA
Overview
Unlock the full potential of your 2000–03 Chevy/GMC 3/4 Ton and 1 Ton Trucks with the 8.1L Vortec V8 with premium long tube headers from Stainless Works. All tubes are CNC mandrel bent for optimal flow and made from 304 stainless steel for maximum corrosion resistance.
Features 1-7/8" or 2" primary tubes and 3" collectors, connecting to factory head pipe and factory catalytic converters. Headers are fully TIG welded and back purged for strength and durability.
Built from corrosion-resistant 304 stainless steel and fully TIG welded for strength and durability at our state-of-the-art facility in Streetsboro, Ohio — engineered for long-term performance.
Why Stainless Works
- American-made from raw material to finished product
- TIG welded by skilled craftsmen for strength and beauty
- Lifetime warranty on material and craftsmanship
- Direct bolt-on fit for 2000–03 8.1L Vortec V8
- Available with 1-7/8" or 2" primary tubes
Key Features
1-7/8" or 2" Primary Tubes
Choose the primary size that best matches your build.
3" Collectors
Improved exhaust scavenging for maximum horsepower and torque.
Uses Factory Catalytic Converters
Connects to factory head pipe and factory cats for easy installation.
304 Stainless Steel
Corrosion-resistant for a lifetime of reliable performance.
Mandrel Bent Tubing
Smooth airflow with zero restriction bends.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2000–03 Chevy Silverado / GMC Sierra 2500HD & 3500 — 8.1L Vortec V8
2000–03 Chevy Suburban 2500 — 8.1L
2000–03 Chevy Avalanche 2500 — 8.1L
Motorhome Class A Workhorse W-Series (P32/P42 Chassis) |
| System Type |
Long Tube Header Kit |
| Primary Tube Size |
1-7/8" or 2" |
| Collector Size |
3" |
| Catalytic Converters |
Uses Factory Cats |
| Connection |
Factory Head Pipe |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded & Back Purged |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
Fitment Information
⚠️ IMPORTANT FITMENT NOTES
Bare Headers will fit Tahoe/Avalanche. Leads will require modification to fit.
Does NOT fit lifted vehicles due to the driveshaft angle change that will hit the driver side header crossing over.
This header system fits the 2000–2003 8.1L Vortec V8 in the following applications:
Truck Applications
✓ Chevy Silverado / GMC Sierra 2500HD & 3500 — 8.1L
✓ Chevy Suburban 2500 — 8.1L
✓ Chevy Avalanche 2500 — 8.1L
*Bare Headers fit Tahoe/Avalanche — leads require modification
Motorhome Applications
✓ Class A Workhorse W-Series (P32/P42 Chassis)
*Designed for motorhome applications
✗ Does NOT fit lifted vehicles
Due to the driveshaft angle change that will hit the driver side header crossing over.
⇩ Download Installation Instructions (PDF)
What's In The Box
- Driver & Passenger Side Headers x2
- O2 Extensions x2
- Clamps x3
- Bolt Kit — 16 Pieces
- RTV Tube
- Installation Instructions
Frequently Asked Questions
Will these headers fit my 2000–03 8.1L Silverado or Sierra?
Yes. These long tube headers are designed for the 2000–2003 Chevy Silverado and GMC Sierra 2500HD and 3500 trucks with the 8.1L Vortec V8. They also fit Suburban 2500 and Avalanche 2500 models with the 8.1L. See the Fitment Information section for important notes about lifted vehicles and Tahoe/Avalanche modifications.
What primary tube sizes are available?
You can choose between 1-7/8" or 2" primary tubes depending on your build. Both options feature 3" collectors and connect to factory head pipes and catalytic converters.
Will these headers fit a lifted truck?
No. These headers do not fit lifted vehicles due to the driveshaft angle change that will hit the driver side header crossing over.
What warranty is included?
Stainless Works provides a lifetime warranty on material and craftsmanship — covering the full life of the product, not just a limited term.
Customer Reviews
★★★★★
2000-03 Silverado/W-Series 8.1L Long Tube Header Kit
Verified Buyer — Jesse Chitty | February 1, 2026
I've had these on my '01 2500HD for over 10 years and 2 different engines and they are phenomenal, the highest quality, they flow very well, probably one of the best features is they don't leak, anywhere, not at the flange ir reducer. The price seems steep, but after 10 years they still look great. I won't buy anything else.
Questions? Call us at | Mon–Fri 7:30am–4:30pm EST
Built To Order in 4 Weeks — Free Shipping on Orders $50+
This Listing
- Brand: Stainless Works
- Part number: 81TRK
- Product type: Headers
- Fitment: 2000-2003 Silverado 8.1L
- Configuration: 2"
- EPA status: Testing
- Shipping weight: 52.3 lb
California Prop 65 warning applies to this product.
Emissions note: headers, downpipes and catless/high-flow pipes may not be legal for street use in all states. Check your local emissions laws before installing.
Fitment note: Stainless Works systems are application-specific (year, cab/bed, transmission and factory exhaust). Send us your VIN before ordering and we will confirm fitment: 954-507-6261 or sales@americanmuscleperformance.net.
