Stainless Works 2008-09 Pontiac G8 GT Headers 2in Primaries 3in Leads Performance Connect w/HF Cats (part # PG8HCAT), built from 304 stainless steel by Stainless Works in Streetsboro, Ohio.
304 Stainless Steel
TIG Welded
2008-09 Pontiac G8
Lifetime Warranty
Made in USA
Overview
Improve the sound and performance on your 2008-09 Pontiac G8 with premium long tube headers from Stainless Works.
American-made and engineered specifically for the Pontiac G8 platform, these headers feature 1-7/8" or 2" CNC mandrel-bent primary tubes designed to increase airflow and unlock horsepower and torque gains.
Each system includes 3" slip-fit collectors and high-flow catalytic converters flowing into 3" lead pipes for smooth exhaust flow and maximum performance.
Choose between factory connect for stock exhaust compatibility or performance connect for seamless integration with a full Stainless Works 3" catback exhaust system.
Built from corrosion-resistant 304 stainless steel and TIG welded 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 2008-09 Pontiac G8
- Pairs perfectly with Stainless Works cat-back for a full system upgrade
Key Features
Long Tube Design
Improves exhaust scavenging for increased power and torque.
1-7/8" Or 2" Primary Tubes
Multiple sizing options for street or high-performance builds.
Mandrel Bent Tubing
Smooth airflow with no restriction bends.
High-Flow Cats
EPA compliance with improved exhaust flow.
Performance Connect Option
Connects seamlessly to Stainless Works 3" cat-back systems.
TIG Welded Construction
Precision welds for maximum durability.
Specifications
| Vehicle Fitment |
2008-09 Pontiac G8 |
| Primary Tube Size |
1-7/8" or 2" |
| Collector Size |
3" Slip-Fit |
| Lead Pipe Size |
3" |
| Material |
304 Stainless Steel |
| Welding |
TIG Welded |
| Catalytic Converters |
EPA Compliant High-Flow |
| Connection Options |
Factory Connect or Performance Connect |
| Lead Time |
Built To Order — 4 Weeks |
| Warranty |
Lifetime |
| Origin |
Made in USA — Streetsboro, Ohio |
⇩ Download Installation Instructions (PDF)
See It In Action
Sound Comparison and Features — Stainless Works Long Tube Headers for the 2008-09 Pontiac G8
Frequently Asked Questions
Will these headers fit my 2008-09 Pontiac G8?
Yes. These headers are designed specifically for the 2008-09 Pontiac G8 platform.
What primary tube sizes are available?
These headers are available in both 1-7/8" and 2" primary tube configurations.
Can I connect these to the factory exhaust?
Yes. Factory connect options are available for use with the stock exhaust system.
Do these work with Stainless Works cat-back systems?
Yes. The performance connect option pairs perfectly with Stainless Works cat-back systems.
What warranty is included?
Stainless Works provides a lifetime warranty on material and craftsmanship.
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: PG8HCAT
- Product type: Headers
- Fitment: 2008-09 Pontiac G8 GT
- Configuration: High-Flow Cats, 2, Stainless Works Exhaust (Performance Connect)
- EPA status: Testing
- Shipping weight: 55 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.
