Pacemaker Headers PH4008 – Ford Falcon BA–BF XR8 & GT 5.4L 4V Boss (2002–2008)

Pacemaker PH4008 headers (extractors) are engineered for Ford Falcon BA–BF XR8 and GT models fitted with the 5.4L 4V Boss V8 engine. These tuned-length headers improve exhaust flow, increase torque, sharpen throttle response, and enhance exhaust tone.

Designed for street performance, track use, and weekend driving, PH4008 headers deliver improved scavenging and reduced restriction while maintaining durability and precise fitment.

Key Features

• Tuned-length design for improved mid-range torque and throttle response
• Mandrel-bent 45mm primary pipes with 63mm flanged outlets
• Thick, machined flanges for reliable sealing and long-term durability
• Smooth merge collectors for improved scavenging and power delivery

Construction

• High-quality steel tubing with precision welds for strength and long service life
• Pacemaker Blue heat-resistant coating rated to 800°C
• Australian made for proven quality and fitment

Additional Options

• Ceramic Coating: See product code "PHC30"
• Gasket: See product code "DSF813"

Fitment Notes

• Suits Ford Falcon BA & BF XR8 and GT 5.4L 4V Boss engines (2002–2008)
• For a scratch-free install, protect painted surfaces and wrap headers during trial fitting
• Clearance may vary depending on engine mounts, steering, and aftermarket components; minor adjustment may be required

What’s Included

• Pacemaker PH4008L left header assembly
• Pacemaker PH4008R right header assembly
• Outlet flanges to suit exhaust connection
• Header bolts [16]

Recommended With

• Pacemaker high-flow catalytic converters CAT4018
• Header gasket set DSF813
• Matching exhaust system and intermediate pipes

Why Good Headers & Exhaust Systems Matter

• At 5000rpm, a 5.4L Boss V8 moves approximately 13,500L/min intake airflow and expels around 40,500L/min exhaust gas
• Efficient headers improve scavenging, reduce restriction and support horsepower and torque gains

Warranty & Compliance

• Backed by Pacemaker 2-year manufacturer warranty
• Verify emissions and registration compliance in your state

Frequently Asked Questions

Will these headers fit all BA–BF XR8 and GT models?
Yes, these headers are designed for BA and BF XR8 and GT models with the 5.4L 4V Boss engine.

Do these headers improve performance?
Yes. Tuned-length headers improve exhaust flow, helping increase torque, throttle response, and overall engine efficiency.

Are gaskets included?
Gaskets are not included. The recommended gasket set is DSF813.

Can I add catalytic converters?
Yes. Matching high-flow catalytic converters such as CAT4018 are recommended for optimal performance.

Customer Support

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