Specialty-Z
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Unleash True VG, VQ, & VR Performance

At Specialty-Z, we don’t just service cars—we live and breathe the engineering legacy of Nissan and Infiniti. From classic twin-turbo Z32s to the modern VR30DDTT platforms powering the Nissan Z and Infiniti Q50/Q60 Red Sport, our passion is backed by decades of proven mechanical mastery. We turn factory specifications into tailored, high-performance realities through our premier Simi Valley facility and our curated online performance store, delivering track-tested parts straight to you garage.

Home » CJM Z34 Pump Retrofit
CJM

CJM Z34 Pump Retrofit

$34.95
Add Billet Fuel Pump Hat
ADD Return Fuel Pump Kit, 370z/G37

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Upgrading to the modular and versatile Z34-style fuel pump assembly is straightforward with the products on this page. Be sure to review the Fitment and Tech Info details before ordering.

The Z34 fuel pump assembly has proven capable to support up to 700 whp (Dynojet STD) on pump E85 in efficient turbo builds. Even in a supercharged, lower-compression setup, users can expect 500+ whp on pump E85. While these figures are impressive, most 350Z and G35C owners pursue the retrofit for reliability and modularity.

By contrast, the original Z33 pump assembly is notorious for blowing out pump grommets, often leaving the car inoperable. Its internalized plumbing also limits modification potential. The Z34 retrofit eliminates these weaknesses and provides a solid foundation for a clean, “OEM+” style fuel pump system.

The 500.3570 Venturi Hose Adapter is the only hardware required for the base conversion itself. However, most builders will also need to convert the assembly for a return-system configuration. We offer complete return conversion kits for use with either the OEM plastic top hat or our CJM Billet Top Hat.