These are Genuine Siemens Deka 42# injectors used for our M5x  supercharger applications. 

This item is for a unit of 1, you will need one per cylinder! These are good for up to 90hp each on pump gas or 65hp each on e85.

Specifications:

Coil Resistance: 12.5 Ohms - High Impedance

Static Flow Rate @ 43.5PSI ( 300kPa ) 80lb/hr = 875 cc/min

Static Flow Rate @ 51PSI ( 350kPa ) 90lb/hr = 945cc/min

Connector: EV1

Series: DEKA 4 ( DEKA IV )

Orifice Type: Single-orifice

Factory fitted with Viton upper and lower o-rings