6 Supra light green 305cc sold shipped. what you see is what you get. four of them work great, two I never used. I removed them yesterday. I was boosting up to 9 psi for the last 2 years with them and no problems. Of course it is always advisable to have used injectors checked and serviced.
Older Guy O2 clamp $60.00 shipped.
Both of these items did excellent jobs for me.

 

Where they flow tested, and what about the O-rings?

 

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Injectors sold.
O2 clamp still available.