^careful with that "best" word. lol
anyway, my suggestion is a kenwood KAC-814D
I have those two subs in two .37 cubic foot sealed boxes wired to a 2 ohm load on that same amp, pushing 250 RMS to each sub, and boy, it cranks.
And I say get a 1.5-2.3 Farad capacitor too, so you get that extra punch.
Sonic Electronix is doing "Server Maintenance" right now, but I suggest shopping there.
however, when the site gets back up, I'm going to do some research and I'll find a much cheaper amp that will do the same thing, because with my experience, with fans cooling the amp (I HIGHLY recommend installing computer fans under the amp) and correct power, fuse, and ground placement, any amp at this level (~300-600RMS) will sound EXACTLY the same. so I actually say go off brand with the correct specs, then just buy it from SonicElectronix.com and you get a full warrenty anyway for like 8 bucks (definitely recommend that too.)
Hope that helps, I'll find some amps and link you too them as soon as their site gets back up.
2002 Red Mazda B2300
Short Cab, Short Bed, Pioneer sound system:
DEH-P5100UB deck, dual USB/aux inputs, single CD, organic display, remote
4 TS-A6872R 40 watt nominal speakers
2 TS-SW2501S4 250 watt nominal 10" subwoofers