I got two check valves from Mazsport to fix the two boost leaks but I don't understand the instructions.

Do I put a check valve on the catch can tube or do the check valves go on the other two tubes that go into the Greddy intake?

 

see photo

https://www.rx8club.com/attachment.p...1&d=1208722930

 

I have seen you're engine bay pics before so I was 100% sure how to install these but the instructions Mazsport sent makes it sound like the catch can hose needs a check valve.

I don’t have the instructions in front of me right now but it said "crank case vent under the oil filler cap"

 

Black to the back, as Scott would say! In the OMP line and Jet Air line.