Advance Headers | Mild Steel Extractors No Hot Box | Holden HQ-WB Commodore VC-VK 6 | A213NHB

PRODUCT CONTENTS:

• 1 x Heavy-Duty Mild Steel Performance Exhaust Extractor Header Assembly (Standard Finish, Clean No Hot Box Design)

Key Features:

• Specialized No Hot Box design provides a clean under-hood appearance, eliminating the standard heat riser base assembly for modified intake setups
• Tuned mandrel-bent primary piping pathways deliver an entirely uniform internal diameter to promote optimized cylinder scavenging and crisp engine response
• Substantially drops power-robbing backpressure, providing noticeability cleaner low-to-mid range torque acceleration—ideal for cruising, performance street machines, and custom multi-carb configurations
• Heavy-duty mild steel construction structurally engineered to handle severe classic car engine bay thermal expansion cycles
• Thick, precision laser-cut cylinder head flanges maintain flush mating boundaries to guard permanently against face distortion and exhaust leaks

Specifications:

⚠️ Crucial Intake, Accessory & Hot Box Variant Notes:
1. No Hot Box Setup: This variant (Part No. A213NHB) intentionally eliminates the standard manifold pre-heater hot box flange. It is perfect for vehicles running aftermarket configurations such as Triple Webers, twin side-draught systems, or specialized single-plane manifolds that do not utilize a pre-heat coolant or heat loop. If you are running the factory carburettor manifold that needs a pre-heat riser, please look at Part No. A213 instead.
2. Delco Air Conditioner Clearance: If your classic platform is equipped with the bulky factory-optioned Delco Air Conditioning Compressor pump, please be advised it will conflict with this pipeline layout. You must utilize specialized part number A85B for Delco A/C clearance paths.

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