yes, you have to plumb in another filter/ water trap/ drain. Other PC had a lot of 'links' about it . Slick one uses a GMC air conditioning 'rad' and a fan. Just use google. You can buy $$$$ kits or just make your own for $ or free.I 'get' how compressing air squeezes he water out but a intercooler would have to have an auto drain, right?
Got any links to a rationally priced intercooler?
Using one greatly reduces the amount of 'dryer pellets'.