It's right under the bolt head where the photo is slightly washed out. Wish I had a better picture but it's tough to get a good shot while laying on your side and holding both my phone and a flashlight.
If you look closely, the horizontal tube is almost twice the height as the tubes further down and to the left. While this may not be your issue, pretty much all the stock intercoolers do this eventually with anything above the stock 260hp tune, whether it be GMPP or aftermarket.
Here's a google image result of an extreme case:
2007 Solstice GXP
#3 ASP, DET and NWOR SCCA
"It's a Kappa - not a classic"