Performance 2.5" Headers & Exhaust - 75/78 Series 4.2L 1HZ

A tired factory exhaust chokes the old 1HZ and leaves it feeling flat and gutless. This Redback header-back system opens up the flow with mandrel-bent headers and 2.5 inch pipe, so your naturally-aspirated 4.2 breathes freer, picks up throttle response and sounds better for it.

Thick flange plates and OE-style hangers make it a straightforward bolt-on, and the gaskets and mounts are included so you can fit it in one go. The heat-proof finish holds up to years of exhaust temps.

Built for the non-turbo 1HZ, not turbo setups.

Toyota Landcruiser 75 and 78 Series 4.2L 1HZ

• Tube Size: 2.5″ (~ 63 mm) muffler and tail‑pipe assembly with matching headers

• Header Design: Mandrel‑bent headers — smoother bends for improved exhaust flow and reduced backpressure

• Flange & Mounting: 2‑bolt, 10 mm thick flange plates and OE‑style hanger brackets for secure, vibration‑resistant fitment

• Finish: Coated with premium heat‑proof paint to resist corrosion and withstand high exhaust temperatures over time

• Included Hardware: Gaskets and exhaust mounts included for complete installation kit — ready to bolt on.

• System Scope: Full header‑to‑tail exhaust (headers + muffler/tailpipe) tailored for naturally-aspirated 1HZ engine — not compatible with turbo or “Extreme Duty” exhaust variants.

Excluded From Free Shipping.

We use Australia Post for most of our local deliveries.

You can expect most parcels within 5-12 business days from when it leaves our warehouse.

International deliveries may vary.

RETURNS
If you are unhappy with your 70 Series Store purchase for any reason, you have 30 days to return it for a full refund.

Note: The product needs to be in unused condition.

After we receive it back at our warehouse, you'll get a full refund within 5 business days.

Please contact us at hello@70seriesstore.com for more information.