Before when I had the Lanzar hooked up, it barely shook my mirror, now when I get in and turn it up, I can't even see what's behind me 'cause it's moving so much. At first I wasn't going to go for an SPL setup (I know it's nothing compared to current SPL setups, but I plan to make something deadly out of it. //content.invisioncic.com/y282845/emoticons/up2something.gif.dd110ecf3ae4b76050d87598f2f8de7c.gif My plans are, the new Pioneer 680MP, which I paid for already, and I have no idea why it's not here. Another set of Hifonics HF12D4's, or sell my currents, and get 4 HFi12D4's, and power them by 2 Rockford Fosgate Punch P5002 amps. Put the subs in a CUSTOM (Not a prefab custom, which a lot of people seem to refer them as.) with 2 ports into the rear deck (where stock speakers are), putting the 2 amps in a custom fogged out plexiglass blue neon (Or black light if it will handle the pressure/vibrations) with fans. A set of Focal 130H components (Not sure if these are best suited for SPL, but I will also be using this as a weekend/daily driver (Details to come)), paired with probably a Soundstream Piccaso amp, and some 8" mid bass' for some fill. Now this won't be done for a while (I have a kid on the way. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif ), so this is subject to change with products coming out in the future. How do you all think this sounds? Any suggestions? Any help would be greatly appreciated. Thanks, Jeremiah.