19lb Genuine Bosch D3 Fuel Injectors for 1985-1992 Camaro & Firebird 5.0L TPI
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Upgrade to modern Bosch Design 3 (D3) technology. These 19lb Genuine Bosch fuel injectors are a precision-engineered replacement for the 1985-1992 Chevrolet Camaro and Pontiac Firebird 305 TPI. Featuring a sophisticated 4-hole nozzle for superior fuel atomization, these injectors offer better throttle response, a smoother idle, and increased reliability over factory originals. Complete Plug-and-Play fitment.
Modern Performance for the Classic 305 TPI
Give your Third-Gen F-Body the fueling precision it deserves. These Genuine Bosch D3 injectors are the preferred upgrade for the 5.0L (305ci) Tuned Port Injection (TPI) engine. The "D3" generation is famous for its slim-body composite design, which runs cooler and is far less prone to internal clogging or heat soak compared to the older metal-style injectors.
Why Upgrade to Bosch D3 Technology?
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4-Hole Spray Pattern: Unlike the single-stream pintle on original 1980s injectors, the D3 utilizes a 4-hole disc nozzle. This creates a fine mist for more complete combustion and efficient power delivery.
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Plug-and-Play Fitment: Designed specifically for the TPI fuel rail and electrical harness. No adapters, spacers, or wiring modifications are required.
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Ethanol Compatible: The advanced internal seals are fully compatible with modern E10 pump gas, preventing the sticking and leaking common in vintage fuel components.
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Balanced Set: Each set is flow-matched to ensure all 8 cylinders receive equal fuel volume, making your engine easier to tune and smoother to drive.
Vehicle Fitment with stock rails and intake:
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Chevrolet Camaro: 1985–1992 (5.0L V8 TPI)
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Pontiac Firebird / Trans Am: 1985–1992 (5.0L V8 TPI)
22LB Bosch D3 fitted with our TPI adapters
All injectors are flow matched in house both statically and dynamically to within ±1% or better
