HELP: 2 RL-i8's in a regular cab truck!

[Kawasaki STX-R 10+ year member]

im wanting to put my 2 rl-i8's in a ported box in my truck. i can either do, between the bucket seats or behind them. i just need help designing the box. i can build a pretty decent one. amp is a mtx 81000d.

max demensions are something like:

45"wX17"hX5"d@topX11"d@bottom

or

9"wX24"lX15"h

thanks in advance for any help...

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[DFW40 10+ year member]

im wanting to put my 2 rl-i8's in a ported box in my truck. i can either do, between the bucket seats or behind them. i just need help designing the box. i can build a pretty decent one. amp is a mtx 81000d.
use this site

http://www.the12volt.com/caraudio/boxcalcs.asp

 

[skmfkr 5,000+ posts]

id do 1 12" rlp thats what i did

 

[Kawasaki STX-R 10+ year member]

i already have the 2 8s and i plan on keeping them forever....

not too sure on what would be best for these speakers but i came up with something like 1.2 ft^3 net @ 32hz. using a 3" round port about 16" long. i am also trying to use sketchup... dimensions are 16"tall, 39"wide, 3.5"deep at the top, and 8.75"deep at the bottom. using 3/4 MDF.

i have bassbox pro, but im still not to good at using it... the graph on the box looks like this

can anyone give me some pointers? thanks

 

[Kawasaki STX-R 10+ year member]

will anyone double check this for me? thanks!