I am thinking of purchasing a power control module from Jet Performance products. They state that their computer chip module will increase the RWHP up 25 when installed.

Any thought on this type of product?

Is the computer located behind the passenger wheel well and if so, how easy is it to access to install this module myself.

Thanks.

I'm always a little leary about products with claims like that, but that's just me. My Tuner said that GM only left about 10 horses on the table from the factory that could be coaxed out with a tune (otherwise completely stock) and no other mods.
If that's with a professional tune, I can't imagine that a "magic pill" would be able to find 25 ponies.
Again, this is just me talking, when he (the tuner) worked on mine, he plugged into the port on the drivers side, not the computor on the passenger side.