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Finally i find out we have some comps in South Dakota. On april 12th im putting one on at a local votec car show and then july first there is a usaci one and im gonna be holding a usaci sometime this summer. Im gonna be using my mustang for the comp and for this local one ill be running 1 SX 18 and an RE 12.1 and then for the usaci ill be running 2 18" SX and 2 12.1s. Ill be in pro stock 0-1000 class so i should be doing very nicely too. im hoping for 150dbs and that should bring me to the world finals too.

Awesome. Kill'em tiger

bout time someone joined me good luck devin. ur gonna run 2 18s in that mustang? thats insane... how do you have room? i would say u need at least 5 cubes for spl with those woofs. also arnt those 12.1s more sq than spl? i would put both those 18s on the vfl u have and run them at like 16+ volts if its legal in usaci

i have 8 with the box im making right now and i still have room on the sides about 1.5-2 cubes on each side. its gonna take up all of the hatch but it can be done it just takes some nice fiberglassing to do it. also i have it so its removable so then its ok to use fiberglass. hell if i get up even higher i might place at the finals.

4 cubes might not be to bad for sx's how much port are you gonna use again? is this a wall type box or just normal ported? send me the specs ill see if i can get one of my re buddies to suggest a box.

its gonna be a hatch box. sub up port up both at the rear window and its all below the rear window. im trying to get 120" per sub but i might have to scrafice a little to make sure i can get them in. its a 91 mustang hatch so it has a fairly big hatch.

do this subs forward ports back if you can fit it. ur car is kind of like a crx. do 3 four inch aeros or 2 six inch aeros firing back. the guys with the crx's and boxes like that are doin 153+ with 2 10s. or try subs forward ports up. i think you would see significant gains over both up.

i have to pretty much do them both up cause the back seat has to stay in and be up and i only have 7" in the back part of the car.

ahh ok... they make u keep the seat up in usaci? thats pretty crazy. the only way to tell which is the loudest is to test

ya. well the rear seat has to be in place atleast so i assume it has to be up.