your making the same mistake i did when i first got a Celi... confusing the GT models and the japanese imported SS models as the Japs didn't put the model name on them... Infact it's very hard to tell at a first glance but your car is either an SS-I or an SS-II, I'd know for sure if you had your chassis number handy (E-ST20X-XXXXX) ... or even a photo of under the hood
man theres so much you need to know about your car and what your car has/doesnt have compared to other models
but anyways, a few comments... 2jz (supra) engine will never go into a celi

6x9's are out as an option as the rear passenger speakers have 6 inch mounts unless you're keen to make big holes in ur parcel tray (thats dodgy for WOF)
there are some good options for making ur dash look nice (at night with LED bulbs)
ive had 2x10" subs and 1x12" sub in my car and I liked the two 10's, the bass from just the 1x12" already rips my ears to shreds so wouldnt have 2 of them..... the 10" subs have a more crisp bass kick and have alot faster response...
my dash, the top isnt really that dark, for some reason my camera just never picks that part up...

doubting you'll be wanting two of these...
