Pacemaker PH5220 Headers – Holden (HQ, HJ, HX, HZ, WB)

Pacemaker PH5220 headers (extractors) are a performance upgrade designed for Holden 253 & 308 engines, fitting HQ, HJ, HX, HX, and WB models. These tuned length 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 tidy, leak-free fit with proven Pacemaker quality.

Key Features

• Tuned length design
• Mandrel-bent 42mm primary pipes, 45mm secondary pipes, and 51mm 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 (PHC10): Enhanced durability and heat management
• Gasket (DSF009A): Available separately for optimal sealing

Fitment Notes

• Linkages on column auto must be modified. 
• Will not fit with Air-Conditioning 
• Will fit Turbo 350 an Turbo 400 gearbox 
• Protect painted surfaces and wrap headers during trial fitting
• Clearance may vary with engine mounts, steering, and aftermarket parts

What’s Included

• Pacemaker PH5215 left header assembly
• Pacemaker PH5220 right header assembly
• Header bolts [12]
• Tapered reducing cones [2] 

Recommended With

• New exhaust gasket and sealant
• Matching intermediate pipes, joiners, or adaptors (sold separately)

Warranty & Compliance

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

Customer Support

Best Mufflers provides expert advice and fast shipping Australia-wide and internationally.

📞 Phone: +61 2 9547 3511 (diverts to mobile)
📧 Email: mail@bestmufflers.com
Order today for fast shipping and support.