To increse the cool air flow to the air filter intake.
Our summer tepm extreme is 42-45 C and winter -05- -10 C more or less.
Yes, I think I saw something similar on a post/thread somewhere else on the community on a Sirion M100. The thing is,I noticed, that, my A/C compresor is blocking the way at the bottom left of the engine bay. At the photo I saw on the post, wasn’t there! So I guess that Sirion did not had an A/C, OR the A/C compresor is located elsewere on this Sirion?
How you did that? What kind of manometer did you use?