I know a guy that has one on his 96 Accord.
I can't feel it kick in either.
But when it does, he gets anywhere from a 3-7HP boost (depending on rpm's).


"Fastest (non-N/A) Zetec"; 15.148 @ 90.21 mph (best time) 15.334 @ 91.61 mph (best speed) Best 60' time = 2.297