Sending my injectors off for service

I've never done this before. Where is the best place to send my 113k mile 1.8 Miata injectors to for cleaning and servicing ?

I use Witchhunter because they are close to me and it takes less than a week before they are back.

http://www.theboostlab.com/

I used these guys for my suzuki outboard injectors. They are side load i think? Most people didnt have the equipment for the ones i have. They did a good job, provided good documentation and was reasonably quick. Wouldnt hesitate to use them again. 

The injectors werent really my problem, they confirmed this with the flow info they provided. It was pretty much what i was expecting, but i was willing to pay for it to make sure they werent the problem.  They were working pretty good but did improve some after their service. 

Grm just recently got some serviced

we started by shipping the fuel injectors out to noted EFI specialist RC Fuel Injection, Inc. in Torrance, California.

A lot of people have used these guys:

http://www.rcfuelinjection.com/

who are also advertisers in Teh Mag.

I too used Witchhunter with excellent results. 

I think Marren has been rated highly by others. 

I'd like to thank everyone for the responses.

I looked at all of the places that you all provided and I see the ultrasonic cleaner is the common denominator of all those shops. Which leads me to wondering....since my car was running well before, and the only reason I considered sending the injectors out is because I had them removed for other reasons, maybe I should just hit HF for an ultrasonic cleaner of my own. While I fully understand that I won't have a pressurized spray rig and a driver to cycle the pintles, I could certainly do some back flushing and gross cleaning with my own ultrasonic cleaner.  

And, in the end, for less money out of pocket, I'd own my own ultrasonic cleaner.

I have no idea if that would work or not.  If you try it, I would think that running some voltage to them to keep them open while the ultrasonic did its thing would be a good idea.  If they are low impedance, you would need a ballast resistor in series too. 

I've cleaned injectors that were stuck shut from sitting in an ultrasonic cleaner and that fixed them but I got a lot more gunk out of them when I cycled them than came out when they were just sitting in the cleaner.

GRM advertiser, USRT (usually sideways rally team). At least one other service provider recommended actually sends theirs out to USRT...

I get fast turnaround with these guys:  http://www.okinjectors.com/my-website#!__my-website/gasoline-injector-service

Jumper K Balls said:

I use Witchhunter because they are close to me and it takes less than a week before they are back.

I second this, but again, JKB and I are PNW. 

Just went to rc engineerIng and it was one day turnaround.  $25/injector    Car ran fine before but the sheet the gave me indicates that they were not happy.  Very glad to have done it. 

I too have used RC Engineering with good results.  Recommended.

http://www.fuelinjectorspecialists.com/ rebuilt mine.

I've always used South Bay Fuel Injector in NY.   Got to know them a bit when I was local, they really helped me out sourcing better parts for my Defender when I had it.   Had them handle a few sets since, always been happy with the work.

-Hans