Isuzu performance and repair services

From towing heavy loads to tackling off-road tracks, Isuzus are built to handle it all. And at Willy’s Workshop, we make sure yours keeps going strong. We work on Isuzus every day, using genuine factory software and specialist tools to handle everything from scheduled servicing to complex issues that others won’t touch.

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Why Isuzu owners trust Willy’s Workshop

At Willy’s Workshop, we know Isuzus, from the earlier 4JJ1 engines right through to the latest 4JJ3 models. We performance-tune them daily. And we’ve even developed custom tunes for the 4JJ3 that most workshops aren’t set up to handle yet.

Our ECU remapping is fully customised to your vehicle. With dealer-grade software, in-house maps, and precision tools, we optimise your Isuzu for real-world use. That means you can expect to drive away with noticeable gains in torque, throttle response and driveability.

At Willy’s, our goal is simple: help you get the best out of your Isuzu, every time you drive it.

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Push further with performance tuning tailored for your Isuzu

Isuzus are built tough and made to last. But with the right tune, they’re capable of so much more. At Willy’s Workshop, we unlock serious gains through custom ECU remapping, tailored specifically to your D-MAX or MU-X.

Our custom ECU remapping gives your D-MAX or MU-X the edge in real-world performance, without compromising reliability. A new D-MAX, for example, can see gains of up to +35% more kilowatts and +35% more torque, all while using less fuel!

How we tune your Isuzu for the way you drive:

Power, Towing or Efficiency: whether you’re towing a caravan, looking for more power or trying to get more mileage out of a tank, we tailor your tune to the way you drive.
Optimised for the usable driving range: Adding power where you need it, not as a big number on your dyno print out.
More mileage out of a tank, and your engine: chances are you’re not on a race team, so there’s no need for your car to be tuned like one. At Willy’s, we focus on tuning your engine to extend its life. Safe, smart tuning, the way it should be.

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Servicing that keeps your Isuzu adventure-ready

From job sites to outback tracks, your D-MAX or MU-X needs to be reliable every time you turn the key. At Willy’s, we offer expert servicing that covers everything from routine maintenance to complex diesel repairs.

Our Isuzu performance and repair services include:

Logbook servicing that protects your warranty and keeps your Isuzu running as it should.
General maintenance, including oils, filters, fluids and safety checks.
Accurate diagnostics for warning lights, limp mode, hard starts, and more.
Common diesel repairs, including EGR/DPF issues, turbo faults and injector problems.
Pre-purchase inspections to help you make a confident, informed buy.
Model-specific advice, including known issues in the 4JJ1 and 4JJ3 engines.
Fast turnaround and upfront pricing.