dual Sa 12 ported enclosure?? Please need help BIG Time!

[BoostedF150]

I have a 2012 f150 supercrew. Im having trouble trying to find out how i should build a dual 12" ported subwoofer box. I have 2- Sundown Sa 12 D4s. I have 1 sa 12 in a prefab ported box now. Just got my 2nd sa 12 yesterday. On the drdriver side the box can be. 32"-34" wide, 20"-22" deep and up to 19" high. That is the Biggest i can go. Smaller the better tho. Im not sure what it should be tuned to tho. Sa recommends 35hz. Im just learning about all of this. I would love for it to be LOUD with LOTS OF BASS and sound BEST as possible. I have Belva BB3000D in my truck for bass. Its Rated at 760@4ohms 1260@2ohms and 1800@1ohm. My Hu is a Kenwood Dnn992Hd. I have 2 Kicker comp 15s i just took out of the truck that was in a ported box. Just hoping the SAs are louder and sounder better. I always loved 12s. I also listen mostly rap music also lime to listen to hip hop and techno type of music. Well I HOPE i could get some help and/or Advice! Any input and suggestions will be GREATLY APPRECIATED!!

[BoostedF150]

Also im not sure if subs should face the rear of truck,front of truck or face to the roof of truck. Same with the port. With the Kickers i had in there in prefab BBox they seemed to sound the best facing the rear of truck. Thanks Everyone

[Joe X]

Do you have a picture of your prefab setup as it was working?

[BoostedF150]

As far is the 15" kicker prefab? Its just a standard BBox ported. The prefab 12 box i have is just for 1 12" subwoofer . Both boxes or the think 5/8" material and carpeted. I have 2 Sundown Sa 12D4s now

[BoostedF150]

The way i had the box for the 15s was sitting on the floor facing the rear of truck and the back seat was flipped up.

[BoostedF150]

Also should each sa 12 i have be in separate chambers in the new box i need to build with a shared port or seperate ports? Or should both subs be in same chamber with 1 port? Thanks man