Is it absolutely necessary to buy the KYB strut/shock mounts when you buy the AGX struts, or can you use the stock ones?

Trying to save money here, but I don't want to have to go back and have it re-done.

 

they are one unit and are direct replacements

 

i just did my setup with sprint and kyb agx and i got the dust boots. well i know alot of peeps without dust boots and their fine but i got them casue i wanted to do it right. if u use the facorty dust boots u have to cut the bump stop. if u get the kyb boots its aleady cut and its the dust boot too its a 2 in one deal its about 60.00.