@Psilocubensis so yeah theres actually a hole in the top for the exhaust about 20"x4" you can kinda see through there, Ill take a pic of the top later tonight - the fans do blow left to right - as well I ended up adding a 1/4 section of 6" PVC to replace that 45 degree board, which helps with making the change of airflow direction smoother. Like I said though, for the cost, id seriously consider using a good inline fan. As for noise anything below about 95% PWM is essentially silent to me, as I have a lot of other fans in this room lol. At 100% PWM it creates a bit of a low rumble Id say? Not sure how to describe it, but its not "fan whine"
like