I have got one fitted
It can reduce intake resistance and increase the amount of air taken in, makes high pressure possible. Furthermore, by trapping the air - it retains the appropriate amount of air inside and is effective in improving accelerating response.
You think is worth investing in the ARC induction box and it does make a difference? Don't like open filter like HKS and Blitz as there are quit noisy. Is the ARC noisy?
Did you change your exhaust system as well?
I do have my exhaust changed to HKS Hyper.
The ARC induction box is pretty amazing design,I am not sure how to describe to you ..it's not those normal corn induction kits noise..errr...shounds more like a splashing sound