SKU: 6208335329

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

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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:
  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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Brian Olson
Lexington, US
★★★★★ 4
Cool as the other side of the pillow
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
Good quality and keeps cool on side of pillow. Have to flip pillow for constant cooling is the ok only down side. Love the material as it is very soft and silky feel to it. Doesn't wrinkle over pillow and had some good color options. Easy to clean. Fair price for a good product
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Reviewed in the United States on January 11, 2026
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Nik
Boise, US
★★★★★ 5
Love!
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
Awesome cases! They really are cool to the touch. I didn’t sleep hot at all. I have a “cut-out” memory foam pillow, and this stretched around it perfectly. It is flexible enough that it doesn’t impede with the cut out. And while the material is “silky,” it doesn’t slide around the pillow while sleeping on it. The zipper feature is perfect. I washed and dried per the tag instructions and they washed very well. Super happy.
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Reviewed in the United States on April 8, 2026
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Jane - NY
Boise, US
★★★★★ 5
AMAZING - LOVE THESE!
Color: Blue, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
I've been using these pillow cases for more than 6 months and LOVE them. They are well made, no wrinkling, fraying or wearing out, even with a weekly washing. I love the zippers on them, my pillows fits perfectly in the case and don't constantly escape from the case overnight. They definitely perform as described: they keep me cool at night and don't smell and actually don't make a mess of my hair. I bought an extra one and put it on a pillow I keep close to my body which helps me from overheating during the night. They are a great value for the price, I wish I could get top sheets in the same style as these and I'd be in heaven!
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Reviewed in the United States on March 23, 2026
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Amazon Customer
Houston, US
★★★★★ 3
Cool Pillowcases
Color: Gray, Size: Queen (U.S. Standard), Set name: Stretchy and Soft
These pillow cases are silky soft and cool to the touch. They don’t stay as cool as I would like, however, so I find myself moving around on the pillow to find a cool spot or flipping the pillow over. I have washed them several times and the coolness seems to be diminishing. Still, it’s better than a regular cotton pillow case. The zipper is needed and helps keep the material on the pillow.
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Reviewed in the United States on August 20, 2025
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Scott Mautino
Bozeman, US
★★★★★ 5
By far the best cooling pillow case I’ve bought highly recommend
Color: Blue, Size: Standard, Set name: Silky
Highly recommend best cooling pillow case I’ve bought very soft and comfortable seems to be made from good material as well
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Reviewed in the United States on May 3, 2026

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