Removing the intercooler will give you better access to the turbo to downpipe bolts. If you don't already have silicone intercooler hoses, now is a good time to get some.

That thing you described is indeed the resistor. I never installed mine and I've been cel free for about 5k miles.

 

You're going to need a MIL eliminator. Teagues carries them http://home.att.net/~teaguesauto/ . They call it a PEP or some such.

Installation of a downpipe ie easy.

1. Remove intercooler
2. Remove turbo heat shield
3. Spray doenpipe bolts with WD 40 and remove
4. Jack car and put it on stands
5. Remove bolts to cat pipe one of which is a stud (you'll need to remove the exhaust support bolt farther back to pull the downpipe)
6. Remove downpipe

Use anti-seize on all the nuts when you reinstall. I bought a couple of heat shield bolts and nuts for the attacment of the downpipe to turbo connection from the dealer and they came in handy.


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Any car parts store will have antiseize. It's a copper colored grease and comes in a little tube. It keeps bolts from sticking so they can be removed easily in future.