Air and Fuel› Fuel Injection Systems and Components - Electronic

Fuel Injector Clinic

445cc High-Impedance Fuel Injector Set

$625.00

SKU: is304-0445h_&_PGTUSC8

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Fuel Injector Clinic is a set of 8 high-impedance fuel injectors for 4.8L, 5.3L, and 6.0L truck motors from 1999-2006. These injectors are rated at 445cc/min (42 lbs/hr) at 3 bar (43.5psi) fuel pressure and 50 lbs/hr (520cc/min) at OE 58psi (4 bar) fuel pressure. They utilize the latest technology for great linearity and short pulse width repeatability.
Show original supplier description
The Fuel Injector Clinic is304-0445h injector set provides 8 high-performance, high-impedance injectors designed for 1999-2006 4.8L, 5.3L, and 6.0L GM truck motors. Each injector is flow-matched to within 1% and individually numbered, with detailed results included. They offer a flow rate of 445cc/min (42 lbs/hr) at 43.5psi (3 bar) and 50 lbs/hr (520cc/min) at OE 58psi (4 bar), ensuring excellent linearity and short pulse width repeatability for precise fuel delivery and improved drivability. These injectors are rated using CF-16B calibration fluid at 43.5psi and 90 degrees F. Fuel Injector Clinic ensures a proper fit for the factory application with all necessary o-rings included. For aftermarket or non-standard setups, it is recommended to contact FIC prior to ordering. These injectors are brand new and unused, reflecting FIC's commitment to reliability over remanufactured parts. Installation of this set requires modification to the vehicle's wiring harness. You can either solder in the included PGTUSC8 pigtails or opt for the optional PADPUtoGM8 plug-and-play adapters to convert to the injector's plug type without cutting or soldering. Fuel Injector Clinic provides a lifetime warranty against failure caused by defects in original manufacture.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandFuel Injector Clinic
Part Numberis304-0445h_&_PGTUSC8
CategoryAir and Fuel
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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