That question is going to get you a variety of answers. You could spend like Scotty($110) or you could go all out and spend thousands for sub/box/amp/install. It all depends on what you are willing to spend. Different brands cost different amounts. I myself spent $150 for an Alpine sub another $100 for the amp and another $150 for a custom made box. So you see the possibilities are endless. I am sure you will get any numerous amount of responses with numerous amounts of cost. So it all depends on what you want to pay for what you want it to sound like. Go to crutchfield.com and look and see what they have and it will get you in the ballpark of what you want to spend.
