Fuel Injectors: How many of these do I buy?

[Fraya713]

Wanting to replace my fuel injectors, how many do I buy? I want to say two of each, but wanted to be sure.
Thanks for your help!

https://www.amazon.com (commissions earned)

https://www.amazon.com (commissions earned)

 

[TheSwapnessMonster]

You are correct.

 

[Fraya713]

You are correct.

Thank you sir!