SKU: 6208335329

XForce | Twin 3" Cat-Back Exhaust System | Holden Monaro V8 LS1 2001–2006 | E4-HV23-CBS

Sale price$465.75 Regular price$517.50
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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:
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 6208335329

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4.5 ★★★★★
Based on 28 reviews
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D. Stec
Draper, US
★★★★★ 1
Terrible pillows
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
These pillows might be fine if you need them for a decorative sham, but definitely NOT to sleep on. They are super lumpy and soft, days after taking them out of package. It seems like there are just bunches of cotton strips in a row that are hard to fluff. They are also dark in some areas, so it looks like the pillow is stained, when in fact it's whatever material the stuffing is. I can't return them because they won't fit back in the box. Super disappointing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
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Verified Purchase
Lianay Reyes
Natrona Heights, US
★★★★★ 5
Comfortable from the first night
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
I found them comfortable and with good support for the head and neck. They are wide in size and feel soft when lying down. After several days of use they continue to retain their shape without problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
T
Verified Purchase
Tom Armstrong
San Leandro, US
★★★★★ 4
Not as Firm as I had hoped
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
A good pillow. However, there is quite a difference between the manufacturer's and my idea of "medium firmness". I found this pillow much softer than I had anticipated. I'll have to go for firmer for my next purchase.
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Reviewed in the United States on July 28, 2025
C
Verified Purchase
Computerized Nurse
Draper, US
★★★★★ 5
I admit when I was wrong.
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
3/29/26 - I took the pillows and put them in my dryer on steam refresh for the default 10 minute cycle. OMG - they fluffed up and evened out to be soft and comfortable, no lumps whatsoever. If you like a soft pillow with some support, but not firm support, THIS is what you want. I am truly amazed. ================================================== Previous review---They arrived in a vacuum seal bag. When you cut the bag and they inflate, they inflate lumpy like. Some areas are thick and some have to fill so, not very good. I am going to try washing them and drying them to see if they fluff up better. Will post the results in a day or two.
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Reviewed in the United States on March 24, 2026
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Verified Purchase
K
Lexington, US
★★★★★ 3
Immediate neck and back pain
Size: Queen - Pack of 2, Style: Medium, Configuration: Pillow
Nice full pillows that holds its shape, BUT was NOT good head and neck support. I noticed an immediate difference. From non existent to growing neck pain in the first night’s use, through the week.
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Reviewed in the United States on May 30, 2026

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