Yeah, I used to have one in my car before this one, it's not bad. I'd say to build the box as large as you reasonably can in that small space. I had mine in a 1.75^3ft. box tuned to 33hz and I liked it (it was built very close to Alpine's spec). If I could have redone it, I would have gone with 2.5 @ 32hz.Autocraft Titanium series. Its a nice battery. As you can see by my diogram, I'm going to do a slot ported box. Any suggestions on box size?