Sensor mod! To good to be true?

Ok, i realize i have a domestic but has anyone done the iat sensor mod on a honda? You guys do have a air intake sensor dont you? They claim 10-15 HP gains w/ this little trick. The people that have done it to there cars have had great results. But, the people that have not done it or have heard bad things from doing it dont agree with this mod. Well, il wait to here from you guys before i go into this to deep. Later