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

The Redback Performance Headers and Exhaust for Toyota Landcruiser 75 and 78 Series (4.2 L 1HZ) is a complete exhaust solution aimed at improving flow, reducing restriction, and enhancing exhaust sound and efficiency for classic 75/78‑series 4.2 L Landcruisers. The system features mandrel‑bent headers matched with a 2.5″ (approx. 63 mm) muffler and tail‑pipe assembly, all coated with a premium heat‑proof finish. It uses 2‑bolt, 10 mm‑thick flange plates and OE‑style hanger brackets for a straightforward bolt‑on installation. The kit includes all necessary gaskets and mounting hardware for easier installation. Designed and manufactured in Australia, this exhaust package is built to bring out improved throttle response, exhaust flow and a more free‑breathing engine characteristic — while retaining compatibility with the stock 1HZ emissions and mechanical setup (no turbo).

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.