Pacemaker PH4009 Headers – Ford Falcon FG XR8 & GT 5.4L 4V BOSS V8 

Pacemaker PH4009 headers (extractors) are a performance upgrade designed for Ford Falcon FG XR8 & GT  with the 5.4L BOSS 4V engine. These 4-1 tuned length competition headers improve exhaust flow, increase low-to-mid range torque, sharpen throttle response, and deliver a stronger exhaust note. Perfect for restorations, street performance, and weekend cruisers, they ensure a leak-free fit with proven Pacemaker quality.

Key Features

• Tuned length Competition Headers 
• Mandrel-bent 48mm primary pipes, 76mm flanged outlets
• Thick, machined flanges for durability and reliable sealing
• Smooth merge collectors for improved scavenging and power delivery

Construction

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

Additional Options

• Ceramic Coating (PHC30): Enhanced durability and heat management
• Gasket (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 parts

What’s Included

• Pacemaker PH4009L left header assembly
• Pacemaker PH4009L right header assembly
• Outlet flanges and gaskets to connect to exhaust system 
• Header bolts [16] 

Recommended With

• New exhaust gaskets
• Matching exhaust system available (sold separately)
• High flow catalytic converters. Product code CAT4018

Why Good Headers and Exhaust Systems Matter

• On average, a 5.4 BOSS engine draws ~11,475 L of air per minute and expels ~35,000 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 fitment support:

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

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