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Description
XForce | Twin 3" Cat-Back Exhaust System | Holden Monaro V8 LS1 2001–2006 | E4-HV23-CBSXForce Twin 3" Performance Cat Back Exhaust System Holden Monaro LS1 E4 HV23 CBS Unleash the iconic V8 growl of your Holden Monaro LS1 with the XForce Twin 3" Cat Back Exhaust System. This high performance system is engineered for the true enthusiast looking to maximize both exhaust flow and acoustic character. Featuring a massive twin 3" mandrel bent pipe configuration, this system utilizes two high flow center straight through mufflers paired with a
XForce Twin 3" Performance Cat-Back Exhaust System - Holden Monaro LS1 - E4-HV23-CBS
Unleash the iconic V8 growl of your Holden Monaro LS1 with the XForce Twin 3" Cat-Back Exhaust System. This high-performance system is engineered for the true enthusiast looking to maximize both exhaust flow and acoustic character. Featuring a massive twin 3" mandrel-bent pipe configuration, this system utilizes two high-flow center straight-through mufflers paired with a specialized twin-in/twin-out rear straight-through muffler. This combination ensures a deep, aggressive performance note while minimizing backpressure, allowing your LS1 engine to breathe more effectively. Finished with twin 3" tips, this system provides the perfect blend of high-end performance and classic muscle car aesthetics.
What's in the Box?
- 1x Twin 3" Mandrel-Bent 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 3" Pipework: Oversized diameter designed to provide maximum exhaust volume and reduced restriction for modified LS1 engines.
- Straight-Through Muffler Design: High-performance internal packing allows for optimal flow without the turbulence found in chambered mufflers.
- Mandrel-Bent Tubing: Ensures a constant internal diameter throughout every bend for smooth, laminar exhaust gas velocity.
- Aggressive V8 Sound: Specifically tuned to deliver a deep, raw, and powerful exhaust note that highlights the 5.7L LS1's character.
- Twin 3" Tips: High-quality exit tips designed to fit the Monaro's rear profile for a clean, performance-oriented look.
Specifications:
- Make: Holden
- Model: Monaro / CV8
- Engine: 5.7L LS1 V8
- Part Number: E4-HV23-CBS
- Material: Performance Grade Steel
- Diameter: Twin 3" (76mm)
- Muffler Type: Straight-Through
Important Information
- The image shown may not reflect the actual product; the system configuration may differ slightly based on production updates.
- Shipping times may vary depending on destination and stock availability
Vehicle Applications:
| Make | Model | From | To | Body | Series | Engine | Variant | Drivetrain |
|---|---|---|---|---|---|---|---|---|
| HOLDEN | ||||||||
| HOLDEN | MONARO | 2001 | 2004 | Coupe | V2 / V2 Series II & III | 5.7L V8 LS1 | CV8 | RWD |
| HOLDEN | MONARO | 2004 | 2006 | Coupe | VZ | 5.7L V8 LS1 | CV8 / CV8-Z | 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
4.5 ★★★★★
Based on 6 reviews
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Product Reviews
★★★★★ 5
Haru LOVES this toy!
I recently purchased the Amazon Basics Hide and Seek Squeaky Dog Plush Toy, Rabbit and Carrot 5 Pack, and it has been an absolute hit with my dog Haru! This set has quickly become his favorite playtime activity, and it's easy to see why.
From the moment I introduced Haru to the plush toys, he was hooked! The rabbit and carrot design is not only adorable but also adds an element of excitement and curiosity for him. The toys' quality is impressive, with sturdy stitching that has held up well to Haru's enthusiastic play style.
The "hide and seek" aspect of the toys is brilliant. Each plush toy contains squeakers, which immediately captured Haru's attention. He thoroughly enjoys searching for the source of the squeaky sound and then triumphantly "catching" the rabbit or carrot. It's like a mini-game that keeps him mentally stimulated and entertained.
One of the best things about this 5-pack set is the variety it offers. Haru never gets bored because he can alternate between the different plush toys, and each one presents a new challenge for him. Whether he's "hunting" the rabbit or "nibbling" on the carrot, his excitement is contagious!
Furthermore, I appreciate how these toys keep Haru engaged for a good amount of time. As a busy dog owner, it's essential to have toys that can entertain him while I'm occupied with other tasks. The Hide and Seek Squeaky Dog Plush Toy accomplishes this perfectly, giving me some peace of mind knowing Haru is happily occupied.
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Reviewed in the United States on July 21, 2023
★★★★★ 5
Great toy
Great size for a medium to large dog and a good value overall. The carrot foliage is made of felt and can tear easily, but the carrot body and bunnies have typical toy durability. The bunnies include squeakers that are softer and not high-pitched. The holes are sized well—small enough that the bunnies don’t fall out on their own. Even with only a few stuffed inside, they stay put until your dog pulls them out.
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Reviewed in the United States on November 30, 2025
★★★★★ 5
I was shocked by how much my daughter's puppy enjoyed this toy!
I've bought two of these — one for my grand puppy to use when she's at my house, and another for her to keep at her house. I was shocked that she actually seems to enjoy playing with this toy! She hunts out all the bunnies and then brings the carrot to me to refill. I refill it, and then she takes the refilled carrot back to her spot and hunts them all out again. If I can't find one of the bunnies (because it's gotten stuck in the couch cushion, for example), I ask her "where's the bunny?" and she helps me find it! This dog is a ferocious chewer but she doesn't chew these toys! It's like she instinctively knows they are for hunting, not chewing. As a result, they have lasted a long time and provide hours of quality fun. Great value!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
My Iggies LOVE this toy. Buy it!!!!!
As a new dog mom to Italian greyhounds, I wasn’t sure if they’d like this, but it is their favorite toy!!!! They LOVE playing with the rabbits, chewing on them, squishing them, flinging them and chasing them. My one iggy likes to chew on the carrot and stick her nose in it when it’s empty. I find the rabbits around the house. So cute and seems to be well made. Definitely worth the cost.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
Very cute and well loved dog toy.
I have two maltese rescue dogs. One if still a puppy and the other is almost 5 years old. The youngest one is a chewer and goes through toys removing whatever she can as soon as she can. This is a VERY cute toy and comes with the 4 cute bunnies inside. My older dog loves to take the bunnies and cuddle them in her bed. So far the chewer has not been able to take them apart and for that I am very pleased. Very well made, stiched well. I was reluctant at first to purchase because of price, but I believe this is good value for your money.
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Reviewed in the United States on February 1, 2026
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