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Description
XForce | Twin 2.5" Cat-Back Exhaust System | Holden Monaro VT VX VY V8 2001–2004 | E4-HV24-CBSXForce Twin 2. 5" Performance Cat Back Exhaust System Holden Monaro VT to VY E4 HV24 CBS Revitalize your Holden Monaro VT to VY with the XForce Performance Cat Back Exhaust System. Designed for the enthusiast who demands a perfect balance of performance and a dynamic, aggressive exhaust note, this system is a precision engineered upgrade for your V8 powered coupe. Crafted from high quality raw 409 stainless steel, the twin 2. 5" mandrel bent pipework
XForce Twin 2.5" Performance Cat-Back Exhaust System - Holden Monaro VT to VY - E4-HV24-CBS
Revitalize your Holden Monaro VT to VY with the XForce Performance Cat-Back Exhaust System. Designed for the enthusiast who demands a perfect balance of performance and a dynamic, aggressive exhaust note, this system is a precision-engineered upgrade for your V8-powered coupe. Crafted from high-quality raw 409 stainless steel, the twin 2.5" mandrel-bent pipework significantly reduces exhaust backpressure. The system features two high-flow center straight-through mufflers and a specialized twin-in/twin-out rear straight-through muffler, ensuring maximum exhaust gas velocity while delivering a deep, powerful sound. Finished with twin 3" tips on a single-side exit, this XForce system provides the attitude and performance to make your Monaro stand out on any road.
What's in the Box?
- 1x Twin 2.5" Center Section with Straight-Through Mufflers
- 1x Twin-In/Twin-Out Rear Straight-Through Muffler Section
- 2x 3" Exhaust Tips
- Installation Gaskets & Hardware
Features:
This product offers the following high-performance features:
- Twin 2.5" Pipework: Mandrel-bent 409 stainless steel for optimized flow and long-term durability.
- Straight-Through Muffler Design: Minimizes restriction for improved horsepower and torque gains.
- Aggressive Exhaust Note: Delivers a deep, raw V8 soundtrack that characterizes the LS engine series.
- Single Side Exit: Features a classic single-side exit configuration with dual 3" tips for a clean, performance-oriented aesthetic.
- Bolt-On Installation: Precision-fit design to ensure a straightforward installation process on factory mounting points.
Specifications:
- Make: Holden
- Model: Monaro / CV8
- Series: VT / VX / VY
- Engine: 5.7L V8 LS1
- Part Number: E4-HV24-CBS
- Material: 409 Stainless Steel (Raw Finish)
- Diameter: Twin 2.5" (63.5mm)
- Exit Style: Single Side Exit
Important Information
- The image shown may not reflect the actual product; the system may differ slightly in configuration based on model variations.
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN | ||||||||
| HOLDEN | MONARO | 2001 | 2002 | Coupe | V2 (VT/VX based) | 5.7L V8 LS1 | CV8 | RWD |
| HOLDEN | MONARO | 2002 | 2004 | Coupe | V2 Series II & III (VY based) | 5.7L V8 LS1 | CV8 | 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 |
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
4.6 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Ohhh Mr. Iguana
Size: Medium/Large, Color: Illana the Iguana - Large
Mr. Iguana is a house favorite! I got my first one of these in a barkbox and my dog loved it so much, i went on the hunt for another one. Amazon saved the day! I own about 7 of these now. They are prefect for dogs just love to chew, they hold up great! And they are heavy duty, super easy to clean! My dogs are very happy, great value for the money! Doesn't have a smell, vibrant colors! Noise level is quiet, minus my dogs chewing !
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Reviewed in the United States on August 13, 2025
★★★★★ 3
Not for strong chewers
Size: Medium/Large, Color: Dog Ness Monster - Large
Initially, I really liked this for my dog. She is about 8 months old and still loves to chew and destroys most toys in a few minutes. When we got this, it seemed like it would hold up for a while despite being clearly gnawed on. Unfortunately, once she focused on the softer "water" portion of the toy, that is where things went downhill with this toy. After a few short chew sessions, she was tearing chunks out of it. We had purchased a replacement since she liked the original so much, and after about 5 minutes with the replacement, she had taken enough out of the blue section that we immediately threw that one out as well. Overall while the green portion held up, the blue didn't. I can't recommend this for strong chewers.
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Reviewed in the United States on December 8, 2025
★★★★★ 4
Definitely not indestructable
Size: Medium/Large, Color: Dog Ness Monster - Large, Size: Medium/Large, Color: Dog Ness Monster - Large
I have a 1-year-old toy fox terrier (Rocky, pictured). He has been chewing on this toy for seven months now; it is one of his favorites. He has been unable to seriously damage the "ocean" portion of this toy, but as you can see from the provided image, the sea serpent has not faired that well. It is missing its snout and smaller portions of the humps. My guess is that the advertiser images showing much larger dogs with "like new" versions of the toy are just that...NEW AND UNCHEWED.
I have not had to clean up bits of this toy from my floor, so I assume Rocky has been swallowing them. My hope is that the yellow material of the serpent is not chemically dangerous when exposed to digestive fluids.
Rocky easily destroys plush toys in a matter of days if not hours and, consumed pieces of a small microfiber blanket that he liked to toss around and play tug-of-war with (past tense as he destroyed it and has since been trashed after I began finding feces-stained undigested pieces of it lying around). Since this toy has survived seven months and has remained recognizable, I have to agree it is durable.
Just beware, if my small toy fox terrier can damage the toy as pictured, expect your large breed chewer to do similar or worse damage. Also, the toy is very heavy! When Rocky drops it down a flight of stairs, it makes a MAJOR thud at the bottom, and sometimes makes me wonder if it might crack the large tile at the bottom.
I cautiously recommend the product.
Note the yellow frisbee in Rocky's picture. It is only a few months old and surprisingly has not suffered any chew damage despite substantial abuse. It appears to bend in the wind like a proverbial reed, evading damage by yielding to pressure.
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Reviewed in the United States on July 5, 2024
★★★★★ 5
Dog loves it! For tough chewers for sure
Size: Medium/Large, Color: Dog Ness Monster - Large, Size: Medium/Large, Color: Dog Ness Monster - Large
Dog absolutely loves it, he’s super rough on all of his toys they usually last about 10 minutes bore they are torn to shreds. It’s lasting through his chewing so I’m happy. It’s also super cute.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Loch Yes
Size: Medium/Large, Color: Dog Ness Monster - Large, Size: Medium/Large, Color: Dog Ness Monster - Large
Cute toy, dog really likes it. I had my doubts when I pulled it out, and honestly so did she, but the soft part bounces, so that got her going. We've had it for about a week. My dog is ~70 lbs and a moderate chewer, and this monster still gets regular play and is holding up well.
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Reviewed in the United States on April 18, 2026