my car has aftermarket intake, it has HKS filters. but the hose leading to air pump is located on stock intake box which is going nowhere. What should i do to this hose? does it suck air from there? if it does, it does suck pretty dirty air i guess. should i connect it to secondary intake?

 

im pretty sure thats just the outlet pipe for the blowoff valve, you will need to put a filter on the end as you dont want anything going down the pipe. A bit of foam tied with a zip tie will do the trick.

I have the same HKS kit!

 

you can easily solve the problem with little air filters.

 

HKS makes an air filter for that hose. It's a small black plastic thing and says HKS on the side. I have one, if you want it.

 

i was talking about ir pump intake. but i was told it sends air into the cat, not into the engine. so i should not worry