Advance Headers | Mild Steel Exhaust Extractors | Holden Nova 89-94 1.6L 1.8L DOHC | A106C

PRODUCT CONTENTS:

• 1 x Heavy-Duty Mild Steel 4-Cylinder Performance DOHC Extractor Assembly

Key Features:

• Highly versatile engineering layout custom-mapped to clear standard carburetted mechanical brackets and Electronic Fuel Injection (EFI) intake runner footprints seamlessly
• Heavy-duty mild steel construction structurally built to handle intense under-bonnet thermal expansion cycles and typical high-revving 4-cylinder vibrations safely
• Precision-mapped packaging architecture engineered to clear front-wheel-drive (FWD) transaxle casings, radiator cooling fan shrouds, and factory starter motors cleanly
• Tuned mandrel-bent primary piping pathways ensure completely uniform internal flow geometry, optimizing gas velocity and removing heavy factory casting bottlenecks
• 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 gas leaks
• Engineered for an efficient workshop turnaround, featuring a straightforward layout that drops seamlessly onto the front engine bank

Specifications:

⚠️ Crucial Engine Family & Cross-Platform Variant Alignment Warnings:
1. Strictly DOHC A-Series Engines Only: This product (Part No. A106C) is designed and flange-mapped exclusively for the Toyota-derived **DOHC 4A-FE and 7A-FE engine profiles**. It will **NOT bolt onto early SOHC 8-valve engines** or later ZZ-series engines due to entirely distinct exhaust port spacings, bolt indexing coordinates, and downpipe angle clearances.
2. Cross-Badged Platform Sync: Because the Holden Nova is a shared platform run with the Toyota Corolla (AE92, AE93, and AE101 generations), verify underbody crossmember layouts if the car has undergone custom engine bay alterations or secondary suspension drops.

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.