3" Turbo-Back Exhaust System - Toyota Landcruiser 105 Series 4.2L 1HZ/1HDFTV Factory Turbo (1998-2007) | Outback Exhausts

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SPECIFICATIONS

  • SKU : OE4631-S
  • Year : 1998- 2007
  • Engine : 4.2L 6CYL
  • Engine type : 1HDFTV, 1HZ or 1HD-T Conversion
  • Make : TOYOTA
  • Model : 105 SERIES
  • Cab : Wagon
  • Exhaust System : 3” Turbo back
  • System Pic

PACKAGE CONTENTS

♦ DUMP PIPE
♦ ENGINE PIPE SECTION
♦ MUFFLER PIPE / PIPE ONLY SECTION
♦ TAIL PIPE SECTION
♦ FITTING KIT

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Premium Turbo-Back Exhaust for Toyota Landcruiser 105 Series 1HZ/1HDFTV Factory Turbo

Unlock the full potential of your Toyota Landcruiser 105 Series with our premium 3" stainless steel turbo-back exhaust system. Engineered and manufactured in Australia specifically for the 4.2L 1HZ and 1HDFTV diesel engines with factory turbo (1998-2007 wagon models), this exhaust delivers exceptional performance gains, superior durability, and that deep, authoritative exhaust note your Cruiser deserves.

Key Features

  • 100% Australian Made - Precision-engineered for the harshest Outback conditions
  • Premium 409 grade Stainless Steel Construction - Superior corrosion resistance and longevity
  • 3" Mandrel Bent Tubing - Maximizes exhaust flow and reduces backpressure
  • Turbo-Back Configuration - Complete system from turbo outlet to tailpipe
  • 5-Year Warranty - Backed by our confidence in quality and durability
  • Bolt-On Installation - Direct fit with all necessary hardware included

Performance Benefits

  • Improved exhaust gas flow for better turbo response and power delivery
  • Reduced exhaust gas temperatures (EGTs) for enhanced engine longevity
  • Noticeable torque gains across the rev range - perfect for towing and touring
  • Deep, refined exhaust note without excessive cabin noise on highway cruising
  • Better fuel economy under load conditions
  • Reduced turbo lag for more responsive acceleration

Built for Australian Conditions

Whether you're crossing the Nullarbor, towing your camper trailer through the High Country, or tackling Cape York, this exhaust system is engineered to withstand Australia's most demanding environments. Our premium stainless steel construction resists corrosion from salt air, river crossings, red dust, and harsh weather conditions that would destroy lesser exhaust systems.

Specifications

  • Vehicle: Toyota Landcruiser 105 Series Wagon
  • Engine: 4.2L 1HZ Diesel / 1HDFTV Diesel with Factory Turbo
  • Years: 1998 - 2007
  • Configuration: Turbo-Back
  • Pipe Diameter: 3" (76mm)
  • Material: Premium grade 409 Stainless Steel
  • Weight: 23kg

What's Included

  • Complete turbo-back exhaust system
  • All necessary gaskets (except turbo gasket) and hardware
  • 5-year manufacturer warranty

Frequently Asked Questions

Will the outback exhaust fit both the 1HZ and 1HDFTV engines?

Yes, the outback exhaust is designed to fit both the 4.2L 1HZ and 1HDFTV diesel engines with factory turbo in the 105 Series wagon (1998-2007). Both engines share similar exhaust routing, making this a direct bolt-on fitment for either variant.

How difficult is the installation of the outback exhausts system?

The outback exhaust is a bolt-on system designed for straightforward installation. Most mechanically-inclined owners can install it with basic hand tools in 2-4 hours. We include detailed instructions with all necessary hardware and gaskets. Professional installation is recommended if you're not comfortable working under your vehicle or don't have access to a hoist.

What performance gains can I expect from the Outback Exhausts?

You'll notice improved throttle response, better turbo spool, and increased torque throughout the rev range - particularly beneficial when towing or climbing hills. Most customers report lower exhaust gas temperatures (EGTs) by 50-80°C, which significantly helps with engine longevity, especially when towing heavy loads or touring in hot conditions. Fuel economy often improves by 5-10% under highway cruising conditions.

Will the outback exhaust be too loud for long-distance touring?

No. Outback exhaust systems are designed to deliver a deep, refined tone without excessive cabin noise. You'll hear a noticeable improvement over stock - a more aggressive note under acceleration - but it remains comfortable for long-distance touring and daily driving. Many customers report less drone than the factory exhaust at highway speeds.

What does the 5-year warranty cover?

The Outback Exhaust 5-year warranty covers manufacturing defects and material failures under normal use. This includes weld integrity, material corrosion, and structural failures. The warranty does not cover damage from accidents, improper installation, modifications, or extreme off-road impacts.

How does this compare to a DPF-back system?

The 105 Series 1HZ and 1HDFTV engines (1998-2007) predate DPF (Diesel Particulate Filter) technology, so this is a turbo-back system. It replaces the entire exhaust from the turbo outlet to the tailpipe, maximizing flow and performance gains without any DPF restrictions.

Do you ship Australia-wide?

Yes, Outback Exhausts offer nationwide delivery across Australia. Shipping is calculated at checkout based on your location. For remote areas or international shipping, please contact us for a freight quote. Most metro areas receive delivery within 3-5 business days.

Can I use the Outback exhaust for serious off-road and water crossings?

Absolutely. Our stainless steel construction is specifically chosen for its corrosion resistance in harsh conditions including water crossings, salt air, coastal environments, and muddy terrain. The system is built to handle the rigors of serious 4x4 touring, remote area travel, and everything the Australian Outback can throw at it.

Will the outback exhaust help with towing performance?

Yes, significantly. The improved exhaust flow reduces backpressure and lowers EGTs, which means your engine can work more efficiently under load. Customers regularly report better hill-climbing ability, reduced gear changes when towing, and more confidence when pulling heavy caravans or trailers - especially in hot weather or mountainous terrain.

What's the difference between this and a 3" DPF-back system?

Your 105 Series doesn't have a DPF, so this turbo-back system is the complete solution. It starts right at the turbo outlet and runs all the way to the rear bumper, replacing the entire restrictive factory exhaust for maximum performance gains.

Why Choose Outback Exhausts?

We're Australian 4x4 enthusiasts who understand what your Landcruiser needs. Every exhaust system is manufactured locally using premium materials and backed by our 5-year warranty. We don't just sell exhausts - we build systems we'd trust on our own vehicles in the harshest conditions Australia can throw at them.

Ready to transform your 105 Series?

Order now for fast Australia-wide delivery and experience the Outback Exhausts difference.