Engine Control ect

Can you all who use them give me some feed back on POWER COMMANDER and TUNE BOY (of which I had not heard of until now). :?: :?

Oh boy, have you asked something!

Cannot help myself, as I haven't fitted either of these.

Hundreds of pages have been written on this site about these very products however (OK - maybe a few dozen).

Can I suggest you stick it in the sites search engine?

Plenty in the Technical section & some in the 'How To' as well.