DavidT:
honestly though. How can you beat paying only $7 for the GM?
I wish an UNBIASED person would try each one, and give us the results...
I really don't see how paying $200 for STB's being worth the $ (especially compared to paying only $14 for 2 GM stb's). Of course, this is just my opinion.
Most everyone treats the GM's like the $5 chip on ebay that guarantees 15 hp
FWIW, I bought 2 GM's last year.

I believe the bill was something like $15 shipped to my door.
Paul, I got this from the "archives":
www.gmpartsdirect.com part number 12456148