Stainless Works 2001-04 C5 Corvette 1-7/8in Headers 3in X-Pipe High-Flow Cats (part # C5LS103CATBT), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2001–04 Corvette C5
Long Tube Headers
3" Collector
Made in USA
Overview
Unlock the full potential of your 2001–04 C5 Corvette with premium long tube headers from Stainless Works. These headers feature 1-7/8" primary tubes and a 3" center section with X-pipe and high-flow catalytic converters. Bolt-on installation with no cutting or welding required.
Manufactured from 304 stainless steel, the headers feature 3/8" thick CNC laser-cut flanges and CNC mandrel bent 1-7/8" primary tubes. The headers are completely TIG welded together and have the AIR tubes and Oxygen sensor bungs installed. The headers have shown gains of 40+ rear wheel horsepower on highly modified engines.
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 2001–04 Corvette C5
- 3/8" thick CNC laser-cut flanges and AIR tubes installed
Key Features
Long Tube Design
Improves exhaust scavenging for more power and torque.
1-7/8" Primary Tubes
CNC mandrel bent for smooth, unrestricted airflow.
3" X-Pipe Center Section
Includes high-flow catalytic converters for maximum performance.
40+ HP Gains
Proven gains of 40+ rear wheel horsepower on modified engines.
Mandrel Bent Tubing
Smooth airflow with zero restriction bends.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2001–04 Chevrolet Corvette C5 — LS1 / LS6 |
| System Type |
Long Tube Header Kit with X-Pipe & High-Flow Converters |
| Primary Tube Size |
1-7/8" |
| Flange Thickness |
3/8" CNC Laser-Cut |
| Center Section |
3" X-Pipe |
| Catalytic Converters |
EPA Compliant High-Flow |
| Included Components |
AIR Tubes Installed, O2 Sensor Bungs Installed |
| Horsepower Gains |
40+ RWHP on Highly Modified Engines |
| Installation |
Bolt-On — No Cutting or Welding Required |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
Fitment Information
ℹ️ SYSTEM OVERVIEW
This header system features 1-7/8" primary tubes with 3/8" thick CNC laser-cut flanges and a 3" center section including X-pipe and high-flow catalytic converters. Bolt-on installation with no cutting or welding required. AIR tubes and O2 sensor bungs are installed.
ℹ️ PERFORMANCE NOTE
These headers have shown gains of 40+ rear wheel horsepower on highly modified engines.
This header system fits the 2001–2004 Chevrolet Corvette C5 LS1/LS6 in the following configurations:
Vehicle Application
✓ 2001–04 Corvette C5
✓ 5.7L LS1 / LS6 Engine
✓ Coupe, Convertible & Z06 Models
Included Features
✓ AIR Tubes Installed
✓ O2 Sensor Bungs Installed
*Complete bolt-on system — no cutting or welding
⇩ Download Installation Instructions (PDF)
See It In Action
Sound Comparison and Features — 2001–04 Corvette C5 Long Tube Header System
What's In The Box
- Driver & Passenger Side Headers x2
- Catalytic Converters x2
- Front Center Section Inlets x2
- X-Pipe
- Rear Center Section Inlets x2
- Adapter Assemblies x2
- Clamps x10
- Clamps with Welded Hanger x2
- Long Bolts x4
- Washers x8
- Nyloc Nuts x4
- Bolt Kit — 16 Pieces
- RTV Tube
- Installation Instructions
Frequently Asked Questions
Will these headers fit my 2001–04 Corvette C5?
Yes. These long tube headers are designed specifically for the 2001–2004 Chevrolet Corvette C5 with the 5.7L LS1 or LS6 engine. They feature 1-7/8" primary tubes with 3/8" thick CNC laser-cut flanges and a 3" center section including X-pipe and high-flow catalytic converters. Bolt-on installation with no cutting or welding required.
What performance gains can I expect?
These headers have shown gains of 40+ rear wheel horsepower on highly modified engines. The long tube design significantly improves exhaust scavenging and reduces backpressure for maximum performance.
Do these headers include AIR tubes and O2 sensor bungs?
Yes. The headers are completely TIG welded together and have the AIR tubes and Oxygen sensor bungs installed for a complete bolt-on installation.
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.
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: C5LS103CATBT
- Product type: Headers
- Fitment: 2001-04 C5 Corvette
- Configuration: High-Flow Cats
- EPA status: Testing
- Shipping weight: 66 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.
