Holden HQ-WB (1971-1985) HJ-HQ-HX-HZ- 2" Tri-Y

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Holden HQ-WB (1971-1985) HJ-HQ-HX-HZ- 2" Tri-Y

For over 50 years, PACEMAKER has been renowned for its innovative exhaust headers crafted in Australia. The brand was the first to introduce mandrel-bending technology to the header market, revolutionizing the industry.

PACEMAKER continues to push the bar, utilizing advanced technology to develop one of Australia's largest Tri-y and 4-into-1 catalogs. In 1997, PACEMAKER launched its Pipe Over Cone™ technology (copyrighted design number 135712) to reduce turbulence and extend the product's life.

 

 

Pacemaker stocks quality headers featuring their "Mandrel Bend" System.

Their cutting edge facility equips a computer-controlled Bender with a patented vertebrate-type mandrel, creating round bends previously inaccessible in Australia.

Moreover, Pacemaker's headers come with precision laser-cut, machined flanges, jig-welded joints, hi-tensile bolts, big bore pipes, and emission hook-ups.

For added protection, these headers are finished with a heat-proof finish tested up to 1270°, and feature Pipe Over Cone™ technology (copyright number 135712).

This special technology increases exhaust gas flow, reducing turbulence within the header and resulting in improved power and performance.

 

This product is designed to fit Holden HQ-WB Series: HJ-HQ-HX-HZ-.
Notes: 2" Tri-Y

• Will only fit with HQ 350 Chev original engine mounting spacers or PACEMAKER spacers part number PEMP 350

Note: spacers must be fitted on correct side of vehicle. (RH spacer is 1¾” high, LH spacer is 1¼” high)

Product Specs

Part #: PH 5340    
P/Steering: Yes Gasket: DSF 23
Air Con: Yes Primary Pipe: 2" (51mm)
Oxy Sen: N/A Secondary Pipe: 2¼" (57mm)
E.G.R: N/A Outlet: 3" (76mm)
Y Branch: N/A Fitting Time: 2 Hrs

Specifications

  • Direct bolt on fitment
  • Mandrel bends
  • All fitting hardware includes
  • Australian made
  • Warranty - 2 years on headers, 5 years on exhaust components.
Important Notes

Product Specs

Part #: PH 5340    
P/Steering: Yes Gasket: DSF 23
Air Con: Yes Primary Pipe: 2" (51mm)
Oxy Sen: N/A Secondary Pipe: 2¼" (57mm)
E.G.R: N/A Outlet: 3" (76mm)
Y Branch: N/A Fitting Time: 2 Hrs