Yes I understand the interior port opening, I will do that, the exit port is flared, lol, I don't want you to think I'm cranking this wide open, I could'nt handle it, I'm running the QSC RMX 1450 bridged at 4 ohms, which claims 1400 watts, the amps gain is set at just over halfway at the moment, and I'm still in need of a signal boost from my Onkyo reciever to drive it, and yes, my other speakers do sound like compared to the S.S.
I def will get all my test gear before modifying any furthur.
And I think the Pinto is one fine automobile! even with the rear collision explosions!!
Now don't Idle to long there Island, I want to see some of your ideas come to fruition also!