Well I have been around for awhile and have learned a lot from other DIY threads and tech posts so I thought I would contribute back to the community with something that I have not bumped into yet but have done myself - port and polishing the hose connections on the stock ic.
First remove the intercooler this is done by removing the 2 M12 mounting bolts on the ic and the 2 M12 bolts that bolt down the bypass valve, also unscrew the clamp on the throttle body and open the clamp on the turbo (this is a PITA if you have the stock clamp) (sorry no pics but can be found on lots of other treads).
With the ic off remove the y hose off the ic and unbolt the two hose mounts ( 4 M12 bolts).
Now to do mine I used my bigger Dremel (35,000 rpm) I am sure you can use a smaller one but trust me it will take a little bit . What worked the best was a carbide cutter but it got caked up with metal quickly so I ended up just using the sanding drum.
There is no set way to do this but work slowly remember that you can always remove more if need be but you cannot at it. Start slowly and keep working the edge down until you get get within a good distance of the edge remember not to create a sharp knife edge this could damage silicone hoses if you get this then just flatten it off when done.
Slowly keep extending the tapper deeper into the tube I went about 3/4 of an inch into the tube. When done I used a wire brush on my slower Dremel to polish up the port it came out darn smooth.
(before the polish, sorry no after polish shot the gf showed up right in the middle and I had to hurry the last one and couldn't get a shot)
Now the most important part - cleaning out the mess you just made. I just hosed it off worked great easy to do but you need to get all of the material out of there or it will either get stuck in your ic or worse end up in the engine.
Comparison of stock and ported:
Then put everything back together and while you may not may not feel 20+ whp it is the little things that help. Also you have just done something that is FREE and gets you hands on with your rex... not a bad deal for an hour of your time.