I'm totally capable of doing it myself... well mostly. I probably don't have a few needed tools... but that's not the problem. What i don't have is 1. the time to do it, 2. the place to do it. Living in downtown SF has it's disadvantages when it comes to cars. That and i'll be out of town for the next two weekends, the only time i could possibly do any car work, pretty much eliminates me being able to do the work myself.
That's exactly why one of my goals in life right now is just to own a garage.
and you're right about the intake... it just needs to be cleaned, but i was thinking more along the lines of them charging more for the labor for a non-standard part... 'specially since you have to take the freakin' bumper off to reach the thing =].