1.) Infinity 7521a amp 97W x 2 RMS or 283W x 1 RMS. paid $229, used 6 months, Here's the link
http://www.crutchfield.com/ISEO-rgbt...px?i=108R7521A
2.)Techvolt single 12" box that fits under rear seat

aid $125, used 6 months: here's the link
http://cgi.ebay.com/NISSAN-TITAN-SUB...sid=p1638.m124
3.) 2" Rear Fabtech block. used 8 months. May have a 3" block available soon, looking to upgrade
4.) I have 2004 factory exhaust, pick up only(Tucson, AZ).
Just copy and paste the links, they work. Having problem posting pictures, I can email them though
Looking for offers, trying to save a little money for more lift, UCA's, 4" tapered block, custom PRG spacer