wuts a PEM? new to this

Ported Exhaust Manifolds.

Don't waste your time with PEM'* just get headers and call it a day. I didn't really notice much of a difference with the plog but with the pacesetters I could easily tell I had more hp.

With the PLOG on the front, you won't notice much difference until you skew (either by tuning or mechanically like some are doing) the 3 front injectors 2% to the rich side.

i think the scan gauge. You will want to moniter the car more as you install more mods, and the guage gives you the ability. You can watch your temps, kr, and more.

The scan gauge gives the data, needed, but is there anything out there that can let me play around with some of the PCM settings? Additionally, if changes are made to the PCM, do I need to have the crank case procedure done? When I bought my PCM from Intense, I had to take my car to the dealer to do the procedure, wich cost me $125. If so, I'd rather buy the all in one tool.