need some information to clear up my confusions...

so far i know K&N/Ingen make CAI for TSX (any others!?)

AEM/Ingen make short rams for TSX (any others?)

and Mugen and Comptech make some sorta of "Box Intake" for TSX (any others?)

so.....do those CAI/SRS and "Box Intake" basically do the same thing? (to route the filter a bit far away from engine bay or suck more cold air into the engine, and therefore more HP)

what's a "Box Intake" actually?

any info will b appreciated, thx guys!

 

So far you got all the info about which company use different design except the last part.
CAI - Cold Air Intake
As the name said it'll re-route your filter to get the most air volume at a lower temp.
SRI - Short Ram Intake
Like what is says it'll reduce the distance from your filter to your throttle body; however, it needs to be placed nearer to the engine than CAI. Hence the name short ram.
ICE box, Cold Box, whatever box is it'll use the same design as the stock ones except it had been modified to suck in more air.
SRI works best if it sits in a race car revving at 8000 rpms since air doesn't have to travel through the piping; therefore, less air restriction.
CAI and BOX intake works the same except CAI let air go through faster BUT it has more possibility to suck water through the filter than BOX intake.