These Exhaust Systems Australia extractors (MPN LANDCRUISER-HZJ70-HZJ75-1HZ-4-2L-DIESEL-GENIE-HEADERS-EXTRACTORS) are listed to fit the Toyota Landcruiser HZJ70/HZJ75 with the 1HZ 4.2L diesel. They're the tubular header upgrade for the naturally aspirated 1HZ six rather than a full exhaust.
What are extractors and what do they change?
Extractors swap the engine's cast exhaust manifold for tubular primaries running into a collector, giving each cylinder a more even path out. On a 1HZ diesel six they sit right at the head, the first component the exhaust gas meets after the port. The aim is a freer path off the engine; the rest of the exhaust — pipe, any muffler — is a separate job downstream. The supplier doesn't publish power, flow or sound figures, so we describe these as a manifold-area change and leave it at that.
Will it suit my Landcruiser?
It's listed for the HZJ70 and HZJ75 Landcruiser with the 1HZ 4.2L diesel. These 70-Series trucks see hard work and engine bays differ with the gear bolted around them, so treat the fit as listed-to-fit and confirm the exact build with us. We check the part against your truck before it's ordered.
Is it road legal?
These are extractors for a naturally aspirated diesel, not a catalytic converter or emissions-hardware delete. Road compliance still depends on the rest of your system and on NSW requirements, which we'll go through with you. No compliance approval is published by the supplier and we won't claim one.
What does fitting involve at our Illawarra workshop?
Oak Flats Muffler Men fits these at our Illawarra workshop. Header work on the 1HZ means clean gaskets, correct torque and a tidy seal into the collector. We confirm the listing against your HZJ70 or HZJ75 first, then book it in. RRP is listed at 1255 AUD; the fitting is quoted once we've seen the truck.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
Do these suit the 1HZ diesel?
Yes — they're listed to fit the Toyota Landcruiser HZJ70/HZJ75 with the 1HZ 4.2L diesel. Confirm your exact build with the workshop before ordering.
Is this the whole exhaust?
No. These are extractors that replace the cast exhaust manifold. Any pipework and muffler downstream are separate.
Fitment support across the Illawarra
Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.Show nearby fitment areasCollapse section
Oak Flats Muffler Men can check this part against supplier specs, part number, image, RRP and vehicle details for customers around Oak Flats, Shellharbour, Wollongong, Dapto, Albion Park, Kiama and the northern suburbs.
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Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.