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:

Important Information

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