Advance Headers | Mild Steel Exhaust Extractors | Holden Commodore VB-VK 253 308 V8 Bosch Starter | A313D

PRODUCT CONTENTS:

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

Key Features:

• Tuned mandrel-bent primary piping pathways ensure completely uniform internal flow geometry, optimizing gas velocity and removing heavy factory cast restrictions
• Engineered with a specific clearance track to accommodate a Bosch high-torque reduction starter motor safely without melting wiring or requiring dangerous heat shielding tricks
• Substantially optimizes low-to-mid range torque acceleration—giving modified street cruisers, tough muscle builds, and street/strip restorations a notable performance boost
• Heavy-duty mild steel construction structurally built to handle intense under-bonnet V8 thermal transitions and demanding operational heat cycles safely
• Thick, precision laser-cut cylinder head flanges maintain a flat, ultra-stable mating footprint to permanently guard against warping and high-pressure exhaust leaks

Specifications:

⚠️ Crucial Starter Motor & Chassis Fitment Warnings:
1. Starter Motor Requirement: This product (Part No. A313D) has primary tube routing altered specifically to tuck around smaller, aftermarket Bosch-style high-torque mini starters. It may not clear bulky, full-size original factory Delco-Remy or early Lucas starter motors due to tight layout boundaries near the engine block block paths.
2. Chassis Limitations: Mapped explicitly for the early generation VB, VC, VH, VK Commodore body shell parameters. It will not slide down correctly into later VL, VN, or VP engine configurations due to K-frame and steering rack routing variations.

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