To remove the inner cooler pipes is pretty easy, but there are some tricks.
Upper: Remove the 13mm nuts on the upper pipe to intercooler. I think its a 7mm socket that fits over the studs and they back right out. This gives you room to slide the pipe up and out of the way but your not done yet... Use a spanner wrench and undo the great big nut at the S/C. A hammer and chisel will do as well, but it will mark it up. If you don't want to go that route, then undo the 4 S/C top bolts and take the top off that says 3.8 on it. There is a 15mm nut on the side facing the battery, near the bottom. This is close to the washer fluid bottle and the power distribution box. Once the nut is off, remove the stud with a 7mm socket. The upper should lift right off.
Lower: Undo the 13 mm nuts at the bottom of the intercoller and the collar shoudl slide back enough to clear the studs. Undo the nuts at the intake plenum and this collar should slide back as well. Now, near the botttom, by the power steering pump is a triangle shaped braket. There are a couple of different ways to take this off. I think there is another 15mm nut and 7mm stud on the side as well, it's a bit tougher to get at compared to the top one, but it's not too bad. The lower will lift and twist out, it takes some finesse, but no gator wresting should be involed.
Don't be suprised if you see oil in the intake tract, this is normal for these cars. Your history of how clean you keep the oil will be shown in the intercooler. If it is black and sooty, it hasn't been kept clean enough. If it is silver and clean, thats a very good sign. My XR-7 is spotless and it has 280,000km. I've always used Motorcraft 5W30 and FL 400S filters. My parts car is pretty grody and it only had 176,000km when it was retired.
Use a good silicone on all intercooler joints when assembling, such as Permatex Ultra Blue, Ultra Copper or Ultra Black. Locktite PST pipe sealant is recommended as well.
There is a guy on here selling a gasket set made from teflon that is inexpensive and re-useable....very cool.
If you don't seal the tubes properly, you car will run like crap and loose boost and tremendous amounts of power. Don't go crazy with the sealant either, use just enough to make a good seal, not a big mess.