For high output NA engines or if using boost

Bosch 47 LB Fuel Injector LS2/LS3/LS7 2005 - 2009 Corvette

Bosch EV6 standard style injector is same O-ring to O-ring length as production C6 Corvette and GTO LS2 injector for a drop in fit.
They also have the new USCar type electrical connector – same as production LS2/LS3 - so no changing to your injector harness connectors is required.

These are high impedance fuel injectors for full compatibility with the production C6 PCM injector drivers.

Flow rating:
5.93 grams/second (47.1 lbs/hr) at 4 bar (58 psi) fuel pressure

The stock LS2 injectors flow 4.27 grams/second (33.9 lbs/hr) at 4 bar (58 psi) fuel pressure.

ZR1 LS9 uses 48 lb injectors (47.5)
AcDelco part # 217-3350

Cost about $60 each

Wiring connector looks like :