i was reading about them and it seems like if it would give some big horsepower numbers what do you guys think?

 

It seems to be a very effective mod on 93's. I picked up 10 rwhp and 17 rwtq.

 

Go to www.ws6.com and he explains this in depth. You will see a gain when you first do it, but then the computer will compensate for it and you will be back to stock. I would just get LT1 Edit or Tunercat or something like that.