Are the primary and secondary injectors interchangeable? mine look a little different in their design and was wondering if they are supposed to be that way and if i do upgrade them, would i have to get 2 seperate ones?

 

They are the same 550cc on turbos for both the primary and 2ndary injectors.

However if they look different it is possible that someone has changed your injectors to something other than the standard 550cc injectors.

 

thanks for the quick response =)