Hurricane Headers HU156STM – Fiat 124 1.6L / 1.8L (1968–1975)

Hurricane HU156STM headers are precision-engineered for Fiat 124B2, 124AC, 125BC, and 132AC engines (1.6L & 1.8L) built between 1968 and 1975. These tuned-length extractors enhance mid-range torque and throttle response while maintaining a smooth exhaust note and strong durability. Perfect for restorations or performance upgrades.

Key Specifications

• Part Number: HU156STM
• Primary Pipes: 1.50"
• Secondary Pipes: –
• Outlet Size: 2.00"
• Design: Tuned-length for street performance
• Construction: Mandrel-bent mild steel

Performance Insight

At 4000 rpm, the Fiat 1.8L twin-cam engine draws approximately 3,800 L/min of intake air and expels around 11,400 L/min of exhaust gas. These headers are tuned to maximise scavenging and exhaust velocity within this range for improved response and efficiency.

Notes

• Made to order – 4 to 6 weeks 
• Will not fit left-hand drive vehicles
• Direct fit for RHD models
• Australian made

Installation Tips

Lubricate threads and bolts with WD-40 (or similar) for easier removal and installation. Protect coated or painted surfaces during fitting.

Recommended With

• Header gasket – see HG156 (if applicable)
• Exhaust Sealant – see Sealant

Customer Support

For product enquiries, advice, or orders:

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87A Planthurst Road, Carlton NSW 2218, Australia
Exhaust Systems Since 1983