I've spent all week fettling my new engine and preparing the 3 door to go back to 2wd and today i noticed something about my turbo that i hadn't noticed before! The place where you would normally connect a pipe to on the compressor housing has instead of a nipple a small grub screw blocking it off

This reminded me that when i looked at the air injectors that came with the engine that one pipe went left and one went right off the injectors instead of both left to the turbo and actuator! I then looked at the intercooler and noticed two take offs for pipes! I know one is for water injection , but could the other one be for the air to air to connect to instead of the compressor housing
The engine was built by Jondell and runs P8 with als,wi and air to air..
I have never seen a compressor without a pipe going to it anyone else?
Cheers Spadge...