I decided to take the injectors out of my TL, and send them out to be professionally cleaned. The cost was $22 per injector, $5.80 to ship them, and $25 for expidited service.
After 265,000 miles, I assume a good cleaning will do them good! They are supposed to get back to me on monday, and i am actually pretty excited to put the car back together!
The shop sends the cleaning results back with the injectors, along with new o-rings, seals, and filters.
Cant wait!

 

Nice! Sounds like a good deal, too.