I like my bass hard, extremely hard. Although if having none is what I need to do; to keep my car in mint condition I shall do that.

An example of the kind of bass I like... That's also a example of the trunk flexing which worried me.
Mustang GT/CS with 2 Kicker L7 12" sub woofers
At 3:24 it looks like it is about to snap in half.. :S
Mitch's Car Audio Install- 2 Kicker L7 12's in a Mustang GT-Alex is a BEAST! - YouTube