How very dare you!
You asked for advice, you were advised to stay with the OEM setup which wasn't what you wanted to hear. You decided you knew best, you didn't! You then start whining as it caused problems and became defensive when you realised you had egg on your face and no one cared.
I read the thread and gave you good advice along with a lot of other members. Toyota designed the stock air box like that for a reason, do you honestly think they would waste time and money on R&D if it wasn't what the best option for the car? However you wanted to remove it, not for "test and adjust" (this has been done many times over, nothing new to be found) but to make a noise of all things?! You are either trying to compensate for something or at a guess the power of a Supra too much for you to handle which is why you want to restrict it.
On a side note, the HKS VVTi intake is still readily available to buy and there is also a 2nd hand one currently for sale.
I'm out.