without seeing the t/s specs, its a crap shoot. it could sound good or bad. just because it claims to have a FR that starts at 25 hz, doesnt mean anything. honestly, if 25 hz is the bottom of an 18" sub, that is kinda crappy.
The important distinction is that this is a woofer intended for large venue formats, not a dedicated autosound subwoofer. If it is anything like the old school woofers it resembles, a pair of them would probably be great for an IB application in a sedan.