really 5whp?

 

I would think on a stock car putting in a aftermarket tune setup for 93 should gain you 5-8 or so WHP, maybe a little more or little less. You probably wouldn't gain that much if you were going from say a performance 87 tune to a 93 tune, but from stock tune to 93 you probably will see that.

 

oh i got ya. i thought you ment between the 87 and 93 tune. i was like, crazy i guess im using 93 for now on.