Advance Headers | Mild Steel Exhaust Extractors | Holden Commodore VN-VS Statesman VQ-VS 5.0L 304 V8 | A314
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Advance Headers | Mild Steel Exhaust Extractors | Holden Commodore ...
Description
Description
Advance Headers High-Performance Mild Steel Exhaust Extractors for HOLDEN 5.0L Fuel-Injected 304 V8 Engines
The Advance Headers Performance Exhaust Extractors (A314) are precision-engineered for the legendary second-generation Holden 5.0-Litre (304 cubic inch) fuel-injected V8 engine family. Tailored to fit perfectly within the popular VN to VS Commodore series and VQ to VS Statesman luxury cruiser engine bays, this heavy-duty tubular header upgrade replaces the restrictive factory cast iron log manifolds. By dramatically dropping power-robbing backpressure and optimizing exhaust gas scavenging velocity, this kit unlocks crisp throttle response and a deep, aggressive V8 tone.
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 map perfectly to high-port symmetrical VN-style EFI cylinder heads, ensuring uniform gas flow routing and maximizing engine efficiency
- Substantially optimizes low-to-mid range torque delivery and acceleration—perfect for modified street cruisers, heavy towing setups, and daily high-performance driving
- Heavy-duty mild steel construction structurally built to handle intense under-hood thermal transitions and demanding V8 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
- Engineered as a direct bolt-on solution designed to drop down safely past standard K-frames, automatic/manual transmission tunnels, and standard steering boxes cleanly
Specifications:
- Brand: Advance Headers
- Part Number: A314
- Material: Mild Steel (Standard Finish)
- Engine Suitability: Holden 5.0L 304ci EFI Pushrod V8 Petrol Only (Not for early 253/308 carburetted blocks)
- Steering Rack Compatibility: Standard Power Steering / Manual Racks Only
- Component Type: Performance Exhaust Extractors / Headers
- Estimated Fitting Time: 2.5 Hours
- Welding Required: No (Direct Bolt-On Variant Configuration)
⚠️ Crucial Steering Rack & Engine Block Fitment Warnings:
1. Variable Speed Steering Rack Exclusion: This standard assembly (Part No. A314) will NOT clear vehicles equipped with a factory variable-speed/variatronic power steering rack due to the larger sizing of the hydraulic control valve module housing. For variable-ratio setups, you must purchase alternative part number A314V instead.
2. Cylinder Head Architecture Limit: This kit is tailored explicitly for the high-port fuel-injected Holden 304 V8 cylinder head bolt pattern. It will not align with early carburetted 253 or 308 iron heads due to completely different exhaust port configurations and spacing layout profiles.
Please Note: Professional installation by an exhaust specialist or qualified automotive mechanic is highly recommended to guarantee proper system alignment and a perfect leak-free seal.
Important Information
- The image shown may not reflect the actual product design.
- Ensure your vehicle details match the application guide below before purchasing.
Vehicle Applications for A314 Performance Holden EFI V8 Extractors
| Make | Model | Year Range Spec | Body Type | Chassis Series | Engine Details | Fitting Time | Drivetrain / Fitment Notes |
|---|---|---|---|---|---|---|---|
| Holden | Commodore / Berlina / Calais / SS | 1988 – 1997 | 4-Door Sedan / 5-Door Station Wagon / Utility (VG-VS Ute) | VN / VP / VR / VS Series Only | 5.0L 304ci Fuel-Injected V8 Only | 2.5 Hours | RWD | Precision direct bolt-on path across standard auto and manual variants. Tucks neatly inside standard K-frame profiles. Requires standard steering box/rack setups (Does not fit variable speed steering). |
| Holden | Statesman / Caprice | 1990 – 1999 | Long-Wheelbase (LWB) Luxury Sedan | VQ / VR / VS Series Only | 5.0L 304ci Fuel-Injected V8 Only | 2.5 Hours | RWD | Heavy-duty high-flow tubular layout routes safely past downstream automatic transmission pans and structural frame steps cleanly. Note: Excludes models optioned with variable-ratio steering racks. |
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