Pacemaker PH4018 Headers – Ford Falcon BA BF XR8 & GT 2002–2008 5.4L 4V Boss Engine

Pacemaker PH4018 headers are engineered for the Ford Falcon BA–BF XR8 & GT 5.4L 4V Boss engine. These interference-design headers feature mandrel-bent 45mm primary pipes, with 2.00" secondary pipes and 63mm flanged outlets, delivering improved flow, stronger low- and mid-range torque, sharper throttle response, and a more aggressive exhaust note. Ideal upgrade for street performance and weekend cruisers, they provide a tidy, leak-free fit with precision engineering.

Key Features

• Interference design with mandrel-bent primaries for optimal flow
• Thick, machined flanges for reliable sealing and durability
• Smooth merge collectors improve scavenging and power delivery

Construction

• High-quality steel tubing with precision welds for long service life
• Pacemaker Blue heat-resistant finish rated to 800°C

Additional Options

• Ceramic Coating (PHC10): Enhanced durability and heat management
• Gaskets (DSF813): Available separately for optimal sealing

Fitment Notes

• Protect painted surfaces and wrap headers during trial fitting
• Clearance may vary with engine mounts, steering, and aftermarket components

What’s Included

• PH4018L left header assembly
• PH4018R right header assembly
• Header bolts [16]
• Outlet flanges to adapt to exhaust system

Recommended With

• New exhaust gaskets
• Matching exhaust system available (sold separately)
• High flow catalytic converters – see product code "CAT4018"

Why Good Headers and Exhaust Systems Matter

• On average, a Boss 5.4L 4V engine draws ~10,800 L of air per minute and expels ~32,167 L per minute at 5000rpm

Warranty & Compliance

• Backed by Pacemaker 2-year warranty (standard terms apply)
• Check local regulations for emissions and roadworthiness compliance

Customer Support

For phone orders, advice, or part enquiries – contact us:

📞 Call Now: +61 2 9547 3511 ✉️ Email Us

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