oh my. So you guys are suggesting that having a heat shield over your DP doesn't help keep heat out of your IC? I would beg to differ. I wouldn't use the stock one though, i would get an aftermarket. Cusco makes a nice looking one, I have a speedmonkee. I like the cusco because it extends even farther than the SM closer to the firewall. I also have my turbo wrapped with thermotec heat wrap, and the first half of my downpipe wrapped (the part that's in the engine bay). This has DRAMATICALLY helped reduce heatsoak. With nothing there my IC would heat soak in the matter of minutes sitting still. Now i can let my car idle for over ten minutes, and my heat shield is still able to be touched, let alone my IC.
I say invest in some aftermarket heat sheilds, a cool intercooler is a happy intercooler. Keep the heat where it belongs, in the exhaust.