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Description
XForce | 4" Raw 409 Stainless Cat Back Exhaust | Ford Falcon FG XR6 Turbo Sedan 2008–2014 | E4-FG21-XFCBSXForce 4" Cat Back Exhaust System Ford Falcon FG XR6 Turbo G6E Turbo E4 FG21 XFCBS Elevate your Ford FG Falcon Turbo sedan's performance with the XForce 4" Cat Back System. Expertly crafted from robust raw 409 stainless steel, this system is designed specifically to bolt onto your XForce dump pipe and catalytic converter kit. Experience an exhilarating blend of power and sound as the massive 4" mandrel bent pipework optimizes exhaust flow for
XForce 4" Cat-Back Exhaust System - Ford Falcon FG XR6 Turbo / G6E Turbo - E4-FG21-XFCBS
Elevate your Ford FG Falcon Turbo sedan's performance with the XForce 4" Cat-Back System. Expertly crafted from robust raw 409 stainless steel, this system is designed specifically to bolt onto your XForce dump pipe and catalytic converter kit. Experience an exhilarating blend of power and sound as the massive 4" mandrel-bent pipework optimizes exhaust flow for significant performance gains. With its aggressive exhaust note, this system is designed to make a statement on the road while ensuring a high-flow exit for your Barra turbo engine. Note: This system fits XForce brand catalytic converters ONLY and the twin tip outlet requires welding for final fitment.
What's in the Box?
- 1x 4" Mandrel-Bent Centre Section
- 1x 4" Rear Section with Straight-Through Sports Muffler
- 1x Twin Tip Outlet (Requires Welding)
- All Required Clamps and Gaskets for XForce Cat-Back Connection
Features:
Upgrade your ride with the following high-performance features:
- 4" Mandrel-Bent Piping: Large diameter 4-inch pipework ensures maximum exhaust gas velocity and reduces backpressure for high-boost applications.
- Raw 409 Stainless Steel: Constructed from durable 409-grade stainless steel, designed to withstand high heat and provide long-lasting performance.
- Straight-Through Sports Muffler: Designed to provide an aggressive, deep exhaust note while maintaining a high-flow internal structure.
- XForce Component Compatibility: Engineered to bolt directly to the XForce cat flange point for a seamless integration with XForce turbo-back components.
- Performance Focused: Unleash the potential of the Barra 270T engine with a system built for tuned turbo vehicles.
Specifications:
- Make: Ford
- Model: Falcon XR6 Turbo / G6E Turbo
- Series: FG
- Year Range: 2008–2014
- Material: Raw 409 Stainless Steel
- Pipe Size: 4 Inch (101mm)
- System Layout: Cat-Back System (Suits XForce Cat Only)
Important Information
- The image shown may not reflect the actual product
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
Vehicle Applications for XForce E4-FG21-XFCBS
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| FORD | ||||||||
| FORD | FALCON | 02/2008 | 12/2014 | Sedan | FG | BARRA 195 | 4.0L | i XT/G6/G6E/XR6 | RWD |
| FORD | FALCON | 05/2008 | 11/2014 | Sedan | FG | BARRA 195 | 4.0L | XR6, G6E | RWD |
Warranty Information
| Product Type | Warranty Period |
|---|---|
| 304 & 201 Stainless Steel Exhaust Systems | 60 Months |
| Accessories | 12 Months |
| Catalytic Converters | 12 Months |
| Electronic Products (Including SmartBox) | 12 Months |
| Mild Steel & 409 Stainless Steel Exhaust Systems | 24 Months |
| Mild Steel Headers | 12 Months |
| Stainless Steel Headers | 24 Months |
| Universal 304 Stainless Steel Mufflers | 24 Months |
| Universal Mild Steel & 409 Stainless Steel Mufflers | 12 Months |
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4.8 ★★★★★
Based on 1912 reviews
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Product Reviews
★★★★★ 5
Great Place to Start
Format: Paperback
Clear and entertaining
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
★★★★★ 5
Engaging Read for Beginners and Techies Alike
Format: Paperback
An engaging and accessible exploration of how computers really work. The author breaks down complex concepts into simple, relatable explanations, making topics like binary, logic gates, and basic circuits far less intimidating. For newcomers, it’s a great way to build a foundational understanding of computer theory with just a touch of electrical engineering.
As someone with a technical background, I still found it entertaining; the examples and analogies added fresh ways to frame ideas I already knew. It’s the kind of book that can bridge the gap between “I use computers” and “I understand what’s happening under the hood.”
Highly recommended for anyone curious about what makes hardware and software tick, whether you’re starting from scratch or just want a new perspective.
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Reviewed in the United States on August 19, 2025
★★★★★ 5
CODE is the book you should get.
Format: Paperback
The best book to enter the field. Grateful that Charles Petzold decided to write it, even happier this was one of the first books I picked up.
Recommend to everyone wanting to become a programmer, or just interested in computers.
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Reviewed in the United States on January 12, 2026
★★★★★ 5
If you only buy one technical computer book, this is it
Format: Paperback
Disclaimer: I owned the first edition for years and read it a dozen times, mainly for pleasure since it’s not only informative but also just enjoyable to read. I’m a professional software architect and have dozens of textbooks on computer science and engineering so I’ve been around the block.
This is the kind of book I would buy all for all my friends (if I had more than a couple) and family members (if they were even slightly into computers, which they aren’t sadly). Petzold does an exceptional job at describing digital logic and guides you through building a conceptual CPU from very first principles.
I think his bottom up approach is the way to go and has helped me understand complex topics in an extremely simple way. When I’m not reading fiction, this is my go to bedtime reading.
The second edition has about 100 more pages than the first and some content has been completely reworked and it’s great.
If you ever had even a passing interest in knowing how computers work at a very fundamental level, get this book!
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Reviewed in the United States on January 31, 2023
★★★★★ 4
First programmer?
Format: Paperback
As an ardent reader of the past 1st edition, I was fairly excited to get the latest version. That is, until I encountered the history chapter of the new edition.
For one thing, what I do NOT understand in this second edition is the newly added description of August Ada Byron (countless of Lovelace). The author claims it was Babbage who was the first programmer to design the engines, not Ada. I am not trying to start a futile argument here about who has more or fewer contributions, etc.
What I am trying to assert here is that it is undisputed that Ada (unless the new evidence arises) left *the very first demonstration* of what this seemingly imaginary machine, which didn't even physically exist, was capable of through her program. Because Babbage designed the engine itself, that doesn't automatically put him in the position of a programmer (despite Babbage being a brilliant engineer/scientist and may have had a simple or detailed program in his mind). However, it was Ada who gave a definite touch to programming concepts that ultimately led to modern-day programming. Ada deserves more recognition than a mere "tutorial writer," and she is certainly entitled to the title she deserves.
Other than that, like the previous edition, this book is a must-read for people who are from related/unrelated fields. I always loved the 1st edition, and I would do too with the 2nd. Still, I think history should always be approached with more care, particularly if matters have potential controversies.
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Reviewed in the United States on January 6, 2023