I got mine from www.pfyc.com. It doesn't really matter who you get it from, they all do the same thing and perform the same way. Its not like you are comparing 5 sets of headers. They should all be about the same price as well. I know I paid like $15 plus shipping for mine, so look at the price I guess more than anything.
A FREE ONE. I live in maryland and if you want to arrange to, I will give you mine.I bought HP tuners and programmed mine out so I don't need the one I bought. I work all over the southern maryland,northern va area. Anthony
The question is kind of silly when you know what it does.
It just disconnects the power to the CAGS solenoid and puts a resistor in its place so the ECM sees the correct load (the resistor simulates the resistance of the coil of the solenoid) and doesn't throw a code.
It's like asking who has the best resistor.
Just get the cheapest one you can find, I'd suggest the free one mentioned above.
Or you can do what I did and just buy a resistor, stick it in there and wrap it in electricle tape. Basically all you need to spend is like $1.00 for a pack and your all set I used like a 3.2k if I can remember right.