SKU: 97546887104

XForce | 1-5/8" Tri-Y Headers & 100-Cell Metallic Cats | Holden Commodore VT-VZ LS1 1999–2006 | H2-HV09B-KIT

Sale price$465.75 Regular price$517.50
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

XForce | 1-5/8" Tri-Y Headers & 100-Cell Metallic Cats | Holden Commodore VT-VZ LS1 1999–2006 | H2-HV09B-KITXForce 1 5 8" Tri Y Headers & 100 Cell Metallic Cats Holden Commodore VT VZ LS1 H2 HV09B KIT Unlock the performance and sound of your LS1 powered Holden with the XForce Header and Cat kit. Featuring a high flow Tri Y design, these headers are engineered to improve low to mid range torque while providing a significant increase in overall power. Paired with 100 cell high flow metallic catalytic converters, this kit is the perfect foundation for a high

XForce 1-5/8" Tri-Y Headers & 100-Cell Metallic Cats - Holden Commodore VT-VZ LS1 - H2-HV09B-KIT

Unlock the performance and sound of your LS1-powered Holden with the XForce Header and Cat kit. Featuring a high-flow Tri-Y design, these headers are engineered to improve low-to-mid range torque while providing a significant increase in overall power. Paired with 100-cell high-flow metallic catalytic converters, this kit is the perfect foundation for a high-performance exhaust setup. Note: O2 extension looms are required for installation, and tuning pipes must be used in place of cats when running on a Dyno.

What's in the Box?

  • 1x Pair of 1-5/8" Primary Tri-Y Headers
  • 2x 2.5" 100-Cell High-Flow Metallic Catalytic Converters
  • Required Gaskets and Bolt Kit

Features:

This product offers the following performance features:

  • Tri-Y Design: Optimized for a broad powerband, providing excellent torque gains and improved engine efficiency for the 5.7L V8.
  • High-Flow Metallic Cats: The 100-cell metallic substrate provides maximum flow with minimal back-pressure compared to standard ceramic units.
  • Stainless Steel Construction: Manufactured from non-polished stainless steel for lasting durability and heat resistance under heavy engine loads.
  • 2.5" Outlets: Large 2.5-inch collector outlets ensure a seamless transition to high-flow cat-back systems.

Specifications:

  • Make: Holden
  • Model: Commodore / Statesman / Caprice
  • Year Range: 1999–2006
  • Primary Pipe Size: 1-5/8 Inch
  • Collector/Outlet Size: 2.5 Inch
  • Cat Type: 100-Cell Metallic
  • Material: Stainless Steel

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 H2-HV09B-KIT
Make Model From To Body Series Engine Variant Drivetrain
HOLDEN
HOLDEN COMMODORE 06/1999 10/2000 Sedan VT LS1 (GENIII) | 5.7L SS | EXECUTIVE RWD
HOLDEN COMMODORE 10/2000 09/2002 Sedan VX LS1 (GENIII) | 5.7L SS | EXECUTIVE RWD
HOLDEN COMMODORE 10/2002 07/2003 Sedan VY LS1 (GENIII) | 5.7L SS | SV8 RWD
HOLDEN COMMODORE 08/2003 07/2004 Sedan VY LS1 (GENIII) | 5.7L SS | SV8 RWD
HOLDEN COMMODORE 08/2004 07/2006 Sedan VZ LS1 (GENIII) | 5.7L SS | SSZ | SV8 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: 97546887104

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TitothePinkTorpedo
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★★★★★ 5
Great Product for noise reduction in Auto Use.
Model: 36 SqFt(3.4 SqM)
I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!
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Reviewed in the United States on December 29, 2025
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Robert Gheysens
Charlottesville, US
★★★★★ 5
Night and day difference
Style: Tech Pack 28 sqft
Stuff works great. Really makes a difference in the sound quality of the vehicle.
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Reviewed in the United States on June 8, 2026
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lael gore
Port Orchard, US
★★★★★ 5
Worth it
Style: Tech Pack 28 sqft
Excellent sound deadening for my tundra doors. Expensive, but worth it.
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Reviewed in the United States on May 23, 2026
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Dana Coelho
Port Orchard, US
★★★★★ 5
Heat and sound deterrent.
Style: Tech Pack 28 sqft
My husband likes this stuff for his older cars. Helps with heat from engine and sound.
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Reviewed in the United States on March 26, 2026
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Dupre'
Fort Morgan, US
★★★★★ 5
Sound Barrier
Style: Tech Pack 28 sqft
Easy to install and work with
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