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Description
XForce | Twin 2.5" Cat Back Exhaust with Mufflers | Holden Commodore Calais VT VX VY VZ 1997–2007 | E4-HV20-1-CBSXForce Twin 2. 5" Performance Cat Back Exhaust System Holden VT, VX, VY & VZ Sedan E4 HV20 1 CBS Elevate the performance and sound of your LS1 or L76 powered Holden with the XForce Twin 2. 5" Cat Back System. Specifically engineered for VT through VZ sedans, this system is crafted from durable raw finish 409 stainless steel. The twin 2. 5" mandrel bent pipework ensures optimal exhaust flow, significantly reducing backpressure compared to the factory
XForce Twin 2.5" Performance Cat-Back Exhaust System - Holden VT, VX, VY & VZ Sedan - E4-HV20-1-CBS
Elevate the performance and sound of your LS1 or L76 powered Holden with the XForce Twin 2.5" Cat-Back System. Specifically engineered for VT through VZ sedans, this system is crafted from durable raw finish 409 stainless steel. The twin 2.5" mandrel-bent pipework ensures optimal exhaust flow, significantly reducing backpressure compared to the factory setup. Featuring two centre straight-through mufflers and a twin-in twin-out rear muffler section, this system provides a powerful V8 exhaust note that remains refined and balanced. Finished with twin 3" tips, it offers a perfect blend of performance gains and a classic high-performance aesthetic.
What's in the Box?
- 1x Twin 2.5" Raw 409 Stainless Steel Pipework
- 2x Centre Straight-Through Performance Mufflers
- 1x Twin-In Twin-Out Rear Straight-Through Muffler Section
- Twin 3" Polished Exhaust Tips (Note: Welding required for final installation)
- All Required Gaskets and Bolt Kit
Features:
This XForce performance exhaust system includes the following features:
- Twin 2.5" Mandrel-Bent Piping: Designed to maximize exhaust velocity for improved torque and horsepower gains.
- Raw 409 Stainless Steel: Built for durability and heat resistance, suitable for high-performance V8 applications.
- Balanced Sound Profile: The combination of centre and rear mufflers delivers a deep, aggressive V8 growl without excessive drone.
- Versatile Fitment: Precision-engineered to fit a wide range of VT, VX, VY, and VZ sedan models including Commodore, Calais, and HSV variants.
- Twin 3" Tips: Adds a performance-ready look to the rear of your vehicle.
Specifications:
- Make: Holden / HSV
- Model: Commodore / Calais / SS / Berlina / Clubsport
- Series: VT, VX, VY, VZ
- Body Style: Sedan
- Year Range: 1997–2007
- Engine Compatibility: 5.0L, 5.7L LS1, 6.0L L76/LS2, 3.8L Supercharged
- Material: 409 Stainless Steel
- Pipe Size: Twin 2.5 Inch (63mm)
- System Layout: Cat-Back System
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-HV20-1-CBS
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN VZ SERIES | ||||||||
| HOLDEN | COMMODORE | 11/2005 | 06/2006 | Sedan | VZ | L76, LS2 | 6.0L | Petrol | SS, i V8 SV8 | RWD |
| HOLDEN | COMMODORE | 09/2004 | 12/2005 | Sedan | VZ | LS1 | 5.7L | Petrol | SS, SS Z, i V8 SV8 | RWD |
| HOLDEN | CALAIS | 09/1997 | 12/2006 | Sedan | VZ | L76 | 6.0L | Petrol | - | RWD |
| HOLDEN | COMMODORE | 09/2004 | 06/2006 | Sedan | VZ | H7, LY7 | 3.6L | Petrol | i V6 SV6 | RWD |
| HOLDEN VY SERIES | ||||||||
| HOLDEN | COMMODORE | 09/1997 | 07/2007 | Sedan | VY | LS1 | 5.7L | Petrol | SS, SV8, Berlina | RWD |
| HOLDEN | CALAIS | 09/1997 | 08/2004 | Sedan | VY | LS1 | 5.7L | Petrol | i V8 | RWD |
| HOLDEN VT & VX SERIES | ||||||||
| HOLDEN | COMMODORE | 09/1997 | 09/2007 | Sedan | VX | LS1 | 5.7L | Petrol | SS, Executive | RWD |
| HOLDEN | COMMODORE | 09/1997 | 10/2007 | Sedan | VT | LS1 | 5.7L | Petrol | SS, Executive | RWD |
| HOLDEN | COMMODORE | 09/1997 | 06/2007 | Sedan | VT | GMH 304 | 5.0L | Petrol | i V8 | RWD |
| HOLDEN | CALAIS | 09/1997 | 10/2000 | Sedan | VT | LS1 | 5.7L | Petrol | i V8 | RWD |
Payment & Security:
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
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Product Reviews
★★★★★ 5
Great Backpack!
Color: Upgrade-apricot, Size: 16 Inch
Great quality for the price and had a lot of space and pockets, which is super convenient!
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Quality
Color: Upgrade-apricot, Size: 16 Inch
Am not disappointed buying this bag it’s spacious all different type of pockets the zippers are so unique the thickness is everything to talk about . I used this for my work bag that I carry 5 days of the week with my uniform,shoes,water bottle,phone,tablet etc and it’s still leaves a lot more space the firmness and sturdiness is 100% ..So comfortable the padding on the back and the shoulder keeps you relaxed. This is value for your money , my coworker are so inlove with my backpack
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Reviewed in the United States on March 20, 2026
★★★★★ 5
Very functional and spacious!
Color: Upgrade-apricot, Size: 16 Inch
I wasn’t expecting to love this backpack as much as I do, but wow —it’s everything I wanted and more. The apricot color is soft and pretty without being too “girly,” and the fabric has a nice matte texture that feels durable yet lightweight. It doesn’t have a plasticky smell at all, just a clean, new bag scent right out of the packaging. The compartments are super well thought out. I can fit my 16-inch laptop, chargers, skincare pouch, and even a change of clothes without the bag looking bulky. The back padding is surprisingly comfy, especially during long airport days, and the straps don’t dig into my shoulders. It sits well on my carry-on handle, making it the perfect travel companion. If you’re into functionality and aesthetics, this is it.
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Reviewed in the United States on July 31, 2025
★★★★★ 5
Great bag!
Color: A-darkgreen, Size: 16 Inch
Best computer bag! I absolutely love the color and quality. It will last a long time. Fits my 16” computer with room
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Reviewed in the United States on April 22, 2026
★★★★★ 5
One of my Favorite Blouses!
Color: Navy Blue, Size: Large, Color: Navy Blue, Size: Large
This is the perfect top when you want to have a little dressier look than a t shirt, but you still are dressing casual or you could even dress it up because the material is just so nice. . I bought my usual size which is large. It’s a little bit loose, which I like, but not oversized. It comes down to around mid rear end . It is a half sleeve or almost a half sleeve, so it covers the batwing area.
It is a high crew neck, but not uncomfortable. It basically stays wrinkle, free almost all day long and after you wash it, it is ready to wear. Speaking of washing, the garment says to put in a separate bag and wash in the machine. I did not put it in a separate bag because I didn’t read the instructions, but I had no problem afterwards. It does say hang to drive which I always do anyway, and the blouse looks brand new after several washings.
The top is very well-made, very department store like looking. I purchased two of them, the navy and the white. The white is a little sheer, but not too bad that you have to wear something underneath it because it is a loose fit, it looks put together.
The price was great as I got it on a deal.
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Reviewed in the United States on January 21, 2026