Advance Headers | Mild Steel Exhaust Extractors | Toyota Landcruiser HZJ75 HZJ78 HZJ79 1HZ 4.2L Diesel | A265
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Advance Headers | Mild Steel Exhaust Extractors | Toyota Landcruise...
Description
Description
Advance Headers High-Performance Mild Steel Exhaust Extractors for TOYOTA Landcruiser 70 Series 4.2L 1HZ Diesel Engines
The Advance Headers Performance Exhaust Extractors (A265) are precision-engineered for the legendary Toyota Landcruiser 70 Series workhorse platforms powered by the iconic 4.2-Litre naturally aspirated 1HZ inline-6 diesel engine. Spanning tough generational configurations including the HZJ75, HZJ78, and HZJ79 models, this heavy-duty tubular header upgrade replaces your highly restrictive factory cast iron log manifold. It is designed to optimize exhaust gas scavenging velocity, decrease power-robbing backpressure, reduce thermal engine stress, and unlock vital low-to-mid range torque.
PRODUCT CONTENTS:
- 1 x Heavy-Duty Mild Steel Performance Exhaust Extractor Header Assembly (Standard Finish)
- 1 x Integrated High-Flow Stainless Steel Flex Joint Mesh (Pre-Welded into the Outlet Pipeline)
Key Features:
- Equipped with an integrated heavy-duty flex joint to isolate engine rocking, preventing exhaust system fatigue and chassis component cracking on harsh outback corrugated tracks
- Tuned mandrel-bent primary piping pathways ensure completely uniform gas flow routing, eliminating the severe restrictions and localized heat traps inherent to factory cast logs
- Substantially optimizes low-end torque delivery and mid-range pulling power—critical for heavy commercial hauling, remote outback touring, and technical 4WD work
- Heavy-duty mild steel construction structurally built to withstand intense diesel vibrations, high thermal changes, and punishing off-road conditions safely
- Thick, precision laser-cut cylinder head flanges maintain flush mating boundaries to guard permanently against face distortion and high-pressure gas leaks
Specifications:
- Brand: Advance Headers
- Part Number: A265
- Material: Mild Steel (Standard Finish)
- Engine Suitability: Toyota 4.2L 1HZ SOHC Inline-6 Diesel Only (Naturally Aspirated Only)
- Drivetrain Profile: 4WD (Four-Wheel Drive) Models
- Component Type: Performance Exhaust Extractors / Headers
- Estimated Fitting Time: 1.5 Hours
- Welding Required: No (Direct Bolt-On Configuration)
⚠️ Crucial EGR Emissions System & Induction Fitment Warnings:
1. EGR Emissions System Limit: This standard configuration (Part No. A265) does NOT feature integrated Exhaust Gas Recirculation (EGR) fitting points. If your specific Landcruiser variant (common on later 2002–2007 builds) runs an active factory emission system requiring header pipe return ports, you must purchase alternative part number A265E instead.
2. Forced Induction Constraint: This product is engineered strictly for naturally aspirated 1HZ engines. It will not align with factory turbo-diesel configurations (such as the 1HD-T, 1HD-FT, or 1HD-FTE engines found in the HDJ series) due to entirely different exhaust port spacings and turbocharger housing positions.
Please Note: Professional installation by an exhaust specialist or qualified 4WD mechanic is highly recommended to guarantee proper system mapping 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 A265 Performance Landcruiser 1HZ Extractors
| Make | Model | Year Range Spec | Body Type | Chassis Series | Engine Details | Fitting Time | Drivetrain / Fitment Notes |
|---|---|---|---|---|---|---|---|
| Toyota | Landcruiser (70 Series) | 1990 – 1999 | Troop Carrier (Troopy) / LWB Cab Chassis Ute | HZJ75 / HZJ75R | 4.2L Inline-6 Diesel (1HZ Naturally Aspirated) | 1.5 Hours | 4WD | Direct bolt-on replacement layout. Flex joint setup prevents stress fracture lines across rough, unsealed corrugations. |
| Toyota | Landcruiser (70 Series) | 1999 – 2007 | Troop Carrier / Single Cab Chassis Ute | HZJ78 / HZJ79 Series Only | 4.2L Inline-6 Diesel (1HZ Naturally Aspirated) | 1.5 Hours | 4WD | Mandrel-bent high-flow pipeline geometry. Drops cleanly down past the updated front coil subframe mount layouts. Note: Models equipped with an active factory EGR line require A265E. |
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