Advance Headers | Mild Steel Exhaust Extractors | Ford Falcon EA-AU XG XH 3.9L 4.0L | A692

PRODUCT CONTENTS:

• 1 x Heavy-Duty Mild Steel 6-Cylinder Performance SOHC Extractor Header Assembly

Key Features:

• Highly versatile engineering matrix mapped to seamlessly clear steering boxes, rack and pinion mechanisms, and firewall geometries across multiple vehicle generations (EA through AU)
• Tuned mandrel-bent primary piping pathways ensure completely uniform internal flow geometry, optimizing gas velocity and removing heavy factory casting traps
• Substantially optimizes low-to-mid range torque delivery—ideal for improving street throttle crispness, cruising manners, and heavy commercial towing or hauling setups
• Heavy-duty mild steel construction structurally built to handle intense under-bonnet thermal expansion cycles and typical inline-6 engine operational vibrations safely
• Thick, precision laser-cut cylinder head flanges maintain a flat, ultra-stable mating footprint to permanently guard against face distortion, thermal warping, and high-pressure exhaust leaks
• Engineered for a fast workshop turnaround, featuring an estimated baseline installation window of just 1.5 hours

Specifications:

⚠️ Crucial Model Generation & Engine Variant Alignment Warnings:
1. Strictly SOHC Overhead Cam Models Only: This product (Part No. A692) is designed and space-mapped exclusively for the Ford single overhead cam 3.9L/4.0L inline-6 family. It will NOT fit early pushrod Crossflow engines (found in XF and older models) or later multi-valve DOHC engines (such as the Barra 182/190 series found in BA-BF models) due to entirely distinct port spacing, flange shapes, and bolt indexing coordinates.
2. Downstream Sensor Check: Formed to clear factory oxygen sensor loops and layout parameters across EA to AU applications cleanly. Always inspect downstream intermediate pipe routing connections on older, hard-worked commercial utility chassis prior to torque-down phases.

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