Great to get the early years of a new model. lol I have been running a COBB stage 2 for about a year. I noticed that, after my open track day, I was down on boost (2-3psi) and down on MPG (3-4). Was a little worried I did something terrible until I looked at the intercooler. I had bent two of the metal tabs that hold the plastic end tanks to the core. I found out that this failure is common on cars from no mod, to stage 2+.
So... heres the plan:
1) I'm going to the the LegacyGT fix and use some JB Weld to strengthen the ok tabs. I'll reconnect the slightly bent tabs and JB Weld them as well.
2) Put either an AVO or Perrin intercooler on my Christmas list.

My questions are,
1) Which JB Weld should I use? (Or other product... Never used JB before)
2) Would I need a new tune to account for a new intercooler? (Or will the computer and stage 2 COBB handle that)

Thanks for the input, and hope to hear some great suggestions or tips. Also, be warned for the other 4th gen guys our there!