Advance Headers | Mild Steel Exhaust Extractors | Holden Commodore VT-VY Statesman WH-WK 3.8L L67 Supercharged | A229SC

PRODUCT CONTENTS:

• 1 x Heavy-Duty Mild Steel Performance Exhaust Extractor Header Set (Left & Right Bank Assembly for L67 Supercharged Engine)

Key Features:

• Engineered specifically for forced-induction flow dynamics to handle the increased exhaust volume and gas speed of the supercharged L67 platform cleanly
• Tuned mandrel-bent primary piping pathways ensure completely uniform gas flow routing, eliminating the severe flow bottlenecks found in original cast manifolds
• Substantially optimizes overall exhaust gas scavenging velocity, delivering crisper throttle response and noticeable low-to-mid range torque gains—perfect for modified or pulley-upgraded setups
• Heavy-duty mild steel construction structurally built to handle the higher thermal loads and demanding engine bay heat cycles generated by supercharged engines
• Thick, precision laser-cut cylinder head flanges maintain flush mating boundaries to guard permanently against warping and high-pressure exhaust gas leaks
• 100% direct bolt-on replacement path engineered to clear factory steering racks and engine bay constraints layout cleanly

Specifications:

⚠️ Crucial Forced Induction Engine Compatibility Note:
This product (Part No. A229SC) is uniquely configured and spaced to clear the unique plumbing profiles of the factory-supercharged L67 engine. If your vehicle features the naturally aspirated 3.8L Ecotec V6, please use standard variant Part No. A229 instead to ensure optimal pipe tracking and oxygen sensor mapping layout paths.

Please Note: Professional installation by an exhaust specialist or qualified automotive mechanic is highly recommended to guarantee proper system alignment and a perfect gas-tight seal.