That totally depends on how deep your pockets are bud! I priced out 2 SoloX's today, with amps, no install, tax, or box, it was around $11,400! But, with that, I can almost guaruntee you're gonna be the loudest car around! How does a 171.1dB sound to you? I dunno if that's music to my ears, or my ears bleeding, but those are some hella impressive numbers! But, remember, if you're hitting that high, you're not gonna have much left for glass, you'll need mylar - and I hear that's not street legal - so pick your system carefully!