Please don't

 

I bought 5 of these, installed all of them on the same car and gained 100hp. It made my 14 second car a 10 second car.

 

lol, I had a friend do the same thing on his '89 supra. not too long afterward his heads got warped and the engine went to crap. I am sure there were other factors in this but giving your pcm the wrong info can be harmful. If the temp is like 95 and it is telling the pcm it is like 65 the engine will take a deep breath and then be surprised when there are less oxygen molecules to react with. this leads to detonation if I am not mistaken.