24lb Genuine Bosch D3 Fuel Injectors for 1985-1992 Corvette, Camaro & Firebird 5.7L L98 TPI
The premier performance upgrade for your L98 350ci V8. These 24lb Genuine Bosch D3 fuel injectors are a high-performance Plug-and-Play replacement for the 1985-1992 Corvette, Camaro, and Firebird 5.7L TPI. Engineered with a 4-hole nozzle for precision fuel delivery, these injectors solve common heat-soak issues and provide the extra flow needed for modified or high-mileage L98 engines.
Optimized Fueling for the 5.7L L98 TPI
The 24lb Bosch D3 injector is the go-to solution for Corvette and F-Body owners looking to replace unreliable factory Multec injectors. These Genuine Bosch Design 3 units feature a modern, slim-body composite construction that runs cooler than vintage metal-body injectors, effectively eliminating the hot-start issues common to the L98 platform.
Performance & Reliability Features:
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24lb Flow Rate: A perfect upgrade for stock or mildly modified 5.7L engines. These provide excellent atomization and are a direct replacement for factory 22lb units (standard tuning adjustments may be required for optimal performance).
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4-Hole Disc Nozzle: Provides a fine mist spray pattern rather than a single stream. This results in more complete combustion, a crisper throttle response, and a smoother idle.
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Plug-and-Play Integration: Designed with the correct TPI length and EV1 electrical connector. No wiring adapters, spacers, or fuel rail modifications are necessary.
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Modern Fuel Compatibility: Constructed with internal seals that are 100% resistant to the corrosive effects of modern E10 Ethanol-blended pump gas.
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SouthBay Quality: Every set is dynamically flow-matched to within 1% to ensure perfect cylinder balance and reliable power delivery.
Vehicle Fitment:
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Chevrolet Corvette: 1985–1991 (5.7L L98 TPI)
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Chevrolet Camaro: 1987–1992 (5.7L L98 TPI)
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Pontiac Firebird / Trans Am: 1987–1992 (5.7L L98 TPI)


