Your BMW is a great car. Wouldn't you like for the bass response of your car's stereo system to be great, too? The path to solid bass is easier than you think, thanks to the folks at Focal.
Focal designed their IFBMW-SUB 8" flat subwoofer to replace the original 6-1/2" underseat sub in select BMW 1, 3, and X1 Series vehicles without modification to the car, giving you the bass power you need. This sub will work great with your BMW's factory system, but its reinforced polypropylene cone and butyl rubber surround can handle up to 90 watts RMS, so it'll thrive with aftermarket amplification. The included steel-and-mesh grille provides protection for the speaker in its new home.
Now you can add an extra dimension to your sophisticated vehicle, and let your hair down just a little. Install one of these subs under each seat, and your system will deliver some serious punch. And thanks to Focal's design smarts, nobody will even know you've got the stealthiest upgrade around until you play the car stereo for them. Wouldn't you like to feel the bass as part of your car's internal space?