Does this sound about right?

Box numbers i got off of the RE Audio box calc. I put in the measurements from my trunk and this is what i got out of it. 2004 mitsubishi lancer ralliart, mtx 1501d, ssa xcon 15. sub facing rear, port facing rear. square vent style port

width 28.5

box height 16.5

top 22

bottom 24.5

wood thickness .75 mdf braced and reseined

port height 15

port width 4

porth length 1 is 18.5

porth length 2 is 12

total port length 37.25

porth diameter is 8.74

square port area 60

sq port internal volumbe 2235

sq port volume displaced 2257.31

box volume ft3 3.79

box volum in3 6551.43

tuned freq is 31.24

is that to low of a tune for a daily spl setup, something the wifey can listen to when she wants and something that if i decide to pull up to the lanes i can still do? and all those numbers are standard inches and taken right from the website. it doesn't take into account driver displacement or the specs of the subs like some pay calcs due, this one was free. thanks for any input and questions