Give your Gen 3 HEMI fuel system the capacity it needs with the Fuel Injector Clinic 1000cc High-Z Fuel Injectors IS153-1000H. Rated at 1000cc/min at 43.5 psi (3 bar), these performance injectors are designed to support applications that have exceeded the capabilities of the factory fuel system. Increased airflow from supercharger pulley upgrades, forced induction, performance camshafts, ported superchargers, and other engine modifications requires additional fuel to maintain the commanded air/fuel ratio under load. For high-horsepower HEMI combinations, upgrading to properly sized and accurately characterized injectors is an essential part of building a reliable fuel system.

Fuel Injector Clinic places a strong emphasis on injector consistency and tuning accuracy. Each set is flow matched to help maintain consistent fuel delivery from cylinder to cylinder, reducing variations that can make high-performance engines more difficult to calibrate. Accurate injector data allows your tuner to properly characterize injector behavior across different pulse widths and operating conditions, helping maintain smooth idle quality, predictable part-throttle operation, and consistent fueling at wide-open throttle. This makes the FIC 1000cc injectors suitable for powerful street-driven vehicles as well as dedicated competition builds.

These injectors utilize a high-impedance, or High-Z, design, allowing them to work with compatible factory-style engine management systems without requiring the external resistor boxes associated with low-impedance injectors. They are also compatible with E85, making them an excellent choice for Gen 3 HEMI owners moving to ethanol-based fuels or flex-fuel performance combinations. Because E85 requires greater fuel volume than gasoline, additional injector capacity becomes especially important when increasing boost or horsepower.

The IS153-1000H is a popular choice for modified Gen 3 HEMI platforms requiring a significant step up from factory injector capacity. Whether you’re building a supercharged Hellcat, Trackhawk, TRX, modified 5.7L HEMI, or performance 6.4L combination, properly sized injectors help provide the fueling headroom needed to safely support additional power. Final horsepower capability will depend on fuel type, base fuel pressure, boost pressure, fuel pump capacity, engine combination, and commanded injector duty cycle.

For enthusiasts who want serious fuel capacity without compromising tuning quality, the Fuel Injector Clinic 1000cc High-Z Fuel Injectors provide an excellent balance of flow, consistency, and drivability. Pair them with a properly designed fuel system and professional custom tuning to create a reliable foundation for your high-performance Gen 3 HEMI build.

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Specifications & Features

• Brand: Fuel Injector Clinic
• Manufacturer Part Number: IS153-1000H
• Product Type: Performance Fuel Injector Set
• Injector Flow Rate: 1000cc/min
• Flow Rating Pressure: 43.5 psi / 3 bar
• Injector Impedance: High-Z / High Impedance
• Fuel Compatibility: Gasoline and E85
• Designed for high-performance Gen 3 HEMI applications
• Flow-matched injector set
• Injector characterization data provided for proper tuning
• Designed to provide consistent cylinder-to-cylinder fueling
• Suitable for increased horsepower and fuel demand
• Ideal for forced-induction applications
• Suitable for supercharger pulley upgrades
• Suitable for E85 and flex-fuel performance builds
• Engine Compatibility: Select 5.7L, 6.1L, 6.2L Supercharged, and 6.4L Gen 3 HEMI applications with compatible injector fitment
• Vehicle Compatibility: Select Dodge Challenger, Dodge Charger, Chrysler 300, Jeep Grand Cherokee, Dodge Durango, Ram, Trackhawk, Hellcat, Redeye, Demon, Super Stock, and TRX applications with compatible Gen 3 HEMI fuel systems
• Year Compatibility: Application-dependent
• Size: Application-specific injector dimensions
• Connector Type: Application-specific electrical connector
• Weight: Approximately 1-2 lbs per complete set
• Material: Metal and fuel-resistant composite construction
• Color: Black / Metallic, appearance may vary
• Installation Difficulty: Moderate
• Custom Tuning Required: Yes
• Intended Use: High-horsepower street builds, E85 conversions, flex-fuel builds, supercharged applications, turbocharged applications, drag racing, and performance Gen 3 HEMI builds
• Fitment Note: Verify injector compatibility, fuel system requirements, and required tuning for your specific application before ordering