Upgrade your LandCruiser HZJ75 or HZJ78 4.2 L 1HZ with this mandrel-bent 2.5″ exhaust for improved flow, sound and durability. Direct bolt-on kit (STR505-507) from Redback.
The 2.5″ Exhaust – Toyota LandCruiser HZJ75 HZJ78 Series 4.2L 1HZ (Part No. STR505-507) is a high-quality bolt-on performance exhaust system engineered specifically for Toyota LandCruiser HZJ75 and HZJ78 models fitted with the 4.2L 1HZ naturally aspirated diesel engine. This system replaces the factory rear section beginning from the engine pipe and offers improved exhaust flow, enhanced sound, and exceptional durability for both off-road and everyday use. Note: This system does not suit the HZJ79 model.
Manufactured from aluminized steel and featuring mandrel-bent tubing, this exhaust is designed for strength and consistent performance. It allows your LandCruiser to breathe easier, improving throttle response and driving efficiency. Perfect for those seeking a reliable upgrade that delivers proven results and longevity.
Performance straight-through design enhances flow and throttle response.
Aluminized steel tubing provides superior corrosion resistance and durability.
CNC mandrel bends reduce back pressure and ensure smooth gas flow.
Direct bolt-on fitment to factory engine pipe and extractors (selected brands).
Includes gaskets, bolts, and mounting brackets for simple installation.
Precision engineered for Toyota LandCruiser HZJ75 and HZJ78 4.2L 1HZ engines.
Backed by the reliability of Redback Exhaust Systems.
Specifications
Part Number: STR505-507
Pipe Diameter: 2.5″ (approximately 63 mm)
Material: Aluminized steel tubing
Fitment: Direct bolt-on to HZJ75/HZJ78 4.2L 1HZ engine pipe
Weight: Approximately 20 kg
Dimensions: Approx. 1.9 m (L) × 0.7 m (W) × 0.2 m (H)
Suitable Models: Toyota LandCruiser HZJ75 / HZJ78 Series 4.2L 1HZ Diesel (Wagon, Ute, Troop Carrier, 1990–2007)
Not Suitable For: HZJ79 model
What’s in the Box
Mandrel-bent 2.5″ centre and rear exhaust sections
Gasket(s) and complete bolt kit
Mounting brackets and hangers
Installation instructions (see link below)
Protective packaging for safe shipping
Compatibility
This exhaust system fits the following vehicle configurations:
Toyota LandCruiser HZJ75 Series 4.2L 1HZ Diesel (Wagon, Ute, Troop Carrier)
Toyota LandCruiser HZJ78 Series 4.2L 1HZ Diesel (Wagon, Ute, Troop Carrier)
Note: Not suitable for HZJ79 models. Please confirm engine code and exhaust configuration before ordering to ensure compatibility.
Delivery & Lead Times
Most systems are held in stock and shipped directly from Melbourne, Australia. Delivery to the Sunshine Coast and other metro Queensland areas typically takes 1–5 business days. Regional and interstate orders may take slightly longer depending on courier schedules and stock availability.
International delivery is available on request; contact us for a custom shipping quote.
Professional Fitting Service on the Sunshine Coast
At Sunshine Coast Diesel Tuning, we provide a professional exhaust fitting service for all Redback and Performance Exhaust systems. Our qualified technicians ensure your new 2.5″ exhaust is correctly aligned, securely mounted, and leak-free. We offer expert installation, test drives, and quality assurance for LandCruisers throughout the Sunshine Coast region, guaranteeing maximum performance and reliability.
