Just finished adding a 13 " sub ( JL 13 TW5) with a (craigslist ) Kenwood 533 rms mono amp. Tight fit for the sub and amp in the boot , but came out OK. However , now it seems I need to add some sound deadening stuff and get an amp for the head unit... Oh well, getting there is half the fun.... If I was more skilled, I probably could have gotten the sub box to sit a bit lower.

how do you liek the sound of the JL?

thats a nice setup you got going

Thanks

I am no expert on subs, but I really like it. It doesn't take much volume to get a back massage and feel the spl or whatever. I find that I am playing music a bit louder now. I am not sure if it justifies the extra cost that JL commands, but I got it on Ebay at a substantial discount.

how much airspace does that sub require?

between .8 to .9 cf