Stainless Works Chevy Chevelle Small/Big Block 1966-67 Exhaust 2 1/2in for Headers with X-Pipe (part # CV6667X), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
1966–67 Chevelle
Catback Exhaust
Lifetime Warranty
Made in USA
Overview
Upgrade your 1966–67 Chevelle with a premium hot rod exhaust system from Stainless Works. Designed to fit aftermarket headers with 3" 3-bolt flanges. Some cutting and welding is required for installation. An X-pipe is included with this kit. Available in 2-1/2" or 3" exhaust with Turbo Chambered mufflers.
Designed for both big block and small block applications, this system delivers improved exhaust flow and a classic muscle car sound that complements your Chevelle's power.
Built from corrosion-resistant 304 stainless steel and TIG welded at our state-of-the-art facility in Streetsboro, Ohio — engineered for long-term durability and 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 1966–67 Chevelle
- Available in 2-1/2" or 3" with Turbo Chambered mufflers
Key Features
3" or 2-1/2" System
Choose the diameter that best matches your build.
Turbo Chambered Mufflers
Delivers a deep, aggressive muscle car tone.
X-Pipe Crossover
Creates a unique sound and improves exhaust scavenging.
Fits Big Block or Small Block
Designed for both small block and big block Chevrolet engines.
Mandrel Bent Tubing
Smooth airflow with zero restriction bends.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
1966–67 Chevelle — Small Block & Big Block |
| System Type |
Catback Exhaust |
| Diameter Options |
3" — or — 2-1/2" |
| Muffler Type |
Turbo Chambered |
| Crossover |
X-Pipe |
| Header Connection |
3" 3-Bolt Flange — Aftermarket Headers |
| Installation Notes |
Some Cutting and Welding Required |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
Fitment Information
⚠️ IMPORTANT INSTALLATION NOTE
Some cutting and welding is required for installation. Designed to fit aftermarket headers with 3" 3-bolt flanges.
ℹ️ SYSTEM OVERVIEW
This catback system is available in 3" or 2-1/2" diameter tubing with Turbo Chambered mufflers and an X-pipe. Designed for 1966–67 Chevelle with aftermarket headers featuring 3" 3-bolt flanges. Fits both small block and big block engines.
This catback system fits the 1966–1967 Chevrolet Chevelle in the following configurations:
Vehicle Application
✓ 1966–67 Chevelle
✓ Small Block & Big Block
✓ Coupe, Convertible & Sedan Models
System Features
✓ 3" or 2-1/2" Diameter
✓ Turbo Chambered Mufflers
✓ X-Pipe Included
⇩ Download Installation Instructions (PDF)
What's In The Box
Contents vary by configuration (diameter and engine size). Example shown below for Big and Small Block 2.5" Turbo Chambered system.
- Special Tubing Transitions x2
- Lead Pipes x4
- X-Pipe
- Mufflers x2
- Tailpipes x2
- Clamps with Welded Hangers x4
- Clamps x8
- Installation Instructions
Frequently Asked Questions
Will this catback fit my 1966–67 Chevelle?
Yes. This catback exhaust is designed specifically for the 1966–1967 Chevelle with small block or big block engines. It is available in 3" or 2-1/2" diameter tubing with Turbo Chambered mufflers and includes an X-pipe.
What headers are compatible with this system?
This system is designed to fit aftermarket headers with 3" 3-bolt flanges. Some cutting and welding is required for installation.
Is cutting and welding required for installation?
Yes. Some cutting and welding is required for installation. Please ensure you have the proper tools and skills or consult a professional exhaust shop for 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: CV6667X
- Product type: Cat-back exhaust
- Fitment: 1966-67 Chevy Chevelle Small/Big Block
- Configuration: Big Block/Small Block 2.5 Inch Turbo Chambered
- Shipping weight: 74 lb
California Prop 65 warning applies to this product.
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.
