If you are using a program like My Mechanic, then its reading what the computer thinks it could be producing, which is complete and utter BS. I tried it for shits and giggles and my SPI thinks its producing over 300 HP as I pick up to highway speed on the ramps. Its a ricers dream program, because trusting it could be considered proof that a sticker on the back window gave you an extra 100 HP.
Only running it on a real dyno will give you real numbers, and if you think paying to an SPI on a dyno is money well spent, have at it.
Somewhere there's a DC10 struggling to get off the ground. I'm not a fan of wings on street cars, I like low key spoilers, but not something that you have to custom order from Boeing.