The 2 you have looked at are not even close in comparison
The RF wont go below 45hz and with a 87db 1w/1m requires heaps of power to go loud
the kicker will go down to 25hz with a 87.2db 1w/1m its in the same boat(hilux)
You can fit 2x 10" Pioneer TS-SW2501S4 under rear seat in toolboxes, just line them with dynamate
or make some boxes behind rear seat.
The pioneer will go down to 20hz with a 90db 1w/1m, sealed/ported specs 0.35-1cuft
so in layman's terms you'll need at-least 600wrms each sub for the rf and kicker to be as loud as the pioneer at 300wrms
Also remember bank for buck is in a ported box so if you want it louder port it.
If i were you and you can build a ported box put them behind rear seat, if not just fit them in toolboxes under seat and store tools behind seat
if you are going to build box specs are each sub
sealed 10-20ltrs (.35-.7cuft)
ported 14ltrs (0.5cuft) with a 3" id x12"long port
17-20ltrs (0.6-0.7cuft) with a 3" id x12.5"long port
remember ltrs is +sub+port displacement so you'll have to had them on.
i have built 2x 20ltr ported boxes and ran theis same sub in a mates car and they out perform my 12's in a sealed box, but you cant compare them to std. subs only shallow ones
http://www.sonicelectronix.com/item_182 ... 501S4.htmlhttp://www.sonicelectronix.com/item_219 ... 700.5.htmlDo you have the rear seat mod done? very recommend
farting is alot like jxxxxxg off. both provide instant gratification, but neither is a long term solution to the actual problem......................