If you’re driving a 70 Series LandCruiser, chances are you’re using it hard—whether it’s for touring, towing, or serious off-roading.
The 70 Series is a legendary workhorse, but it’s no secret that it’s built old-school. That leaves heaps of room for modern upgrades that boost performance, economy, and reliability.
Here are my top 10 70 Series upgrades (in no particular order) to help you get the most out of your rig.
Quick Summary
- ECU Remapping
- Heavy-Duty Clutch Upgrade
- Front-Mount Intercooler
- Catch Can Installation
- Performance Exhaust System
- Pre-Fuel Filter Kit
- GVM and Suspension Upgrade
- Upgraded Injectors
- Airbox and Snorkel Combo
- Transmission Breather Kit
1. ECU Remapping
What is it?
A custom ECU remap fine-tunes the 70 Series’ engine parameters, delivering noticeable gains in power, torque, and drivability—especially when paired with other mods.
What are the benefits?
- Eliminates sluggish throttle response
- Tailors power delivery for towing or touring
- Improves fuel economy
- Unlocks the engine’s full potential
Check Out: ECU Remapping
2. Heavy-Duty Clutch Upgrade
What is it?
Factory clutches on the 70 are often overwhelmed once you add power or load. A heavy-duty clutch is essential if you’re running big tyres, towing, or remapped.
What are the benefits?
- Handles more torque without slipping
- Improves pedal feel and engagement
- Boosts long-term reliability under heavy loads
3. Front-Mount Intercooler
What is it?
The factory top-mount struggles with heat soak. A front-mount intercooler increases cooling efficiency and keeps intake temps low for consistent performance.
What are the benefits?
- Maintains power during long climbs or towing
- Reduces heat-related engine strain
- Works best paired with ECU tuning
4. Catch Can Installation
What is it?
A catch can stops oil vapour from building up in your intake system—a major issue with EGR-equipped 70s.
What are the benefits?
- Prevents carbon buildup in the intake manifold
- Protects the turbo and intercooler
- Improves long-term engine health
Check Out: Catch Can Installation
5. Performance Exhaust System
What is it?
A high-flow exhaust reduces back pressure and improves airflow, which supports better turbo response and fuel burn.
What are the benefits?
- Gains in torque and throttle response
- Helps reduce EGTs under load
- Pairs well with tuning and intercooler upgrades
Check Out: 4×4 Exhaust Upgrades
6. Pre-Fuel Filter Kit
What is it?
Modern diesel systems are sensitive to fuel contamination. A pre-filter adds a crucial layer of protection.
What are the benefits?
- Stops water and particles before they hit injectors
- Reduces wear on the fuel system
- Avoids expensive injector or pump repairs
7. GVM and Suspension Upgrade
What is it?
Most 70 Series owners end up overloaded once barwork, drawers, long-range tanks, and tools go in. A GVM upgrade legally increases payload and improves ride.
What are the benefits?
- Restores safe handling under load
- Prevents suspension sag and tyre wear
- Legal compliance for insurance and towing
Check Out: 4×4 Suspension Upgrades
8. Upgraded Injectors
What is it?
High flow or upgraded injectors support better atomisation and keep up with other performance mods like turbo or tune.
What are the benefits?
- Smoother power delivery
- Improved fuel economy when tuned properly
- Prevents overloading factory injectors
Check Out: Injector Upgrades
9. Airbox and Snorkel Combo
What is it?
A sealed airbox paired with a snorkel keeps your intake clean, dry, and ready for deep crossings or dusty tracks.
What are the benefits?
- Protects engine from water and dust
- Improves airflow and filtration
- Essential for remote travel and reliability
10. Transmission Breather Kit
What is it?
Water can get into diffs and gearboxes if breathers are too low. A raised breather kit relocates them higher for safe water crossings.
What are the benefits?
- Prevents water ingress and expensive repairs
- Protects gearbox, transfer case, and diffs
- Low-cost, high-value mod for off-roaders
Upgrade Your 70 Series with Confidence
I’ve been working on 70s for over 20 years—if there’s one thing I’ve learned, it’s that every owner builds theirs a little differently. Whether you’re setting up for touring, work, or weekend fun, the right mods make a huge difference in performance and reliability.
Explore our 70 series upgrades and get in touch to discuss your build today!
