I've got it narrowed down to the MTX 12. Now here is where my basic knowlege is useless. I need to cecide between the T5512-04 and the T5512-44. I will modify the box to reduce it to the suggested 1.25 ft^3

http://www.mtx.com/caraudio/products/subwoofers/TechData_T5512-04.pdf

http://www.mtx.com/caraudio/products/subwoofers/TechData_T5512-44.pdf


99 SE V6\5spd - 156 HP\157 TQ 15.166-90.84 Totaled 02/12/06 99 SVT # 1571 - 175 HP\153 TQ 14.999-91.88 Born 3/24/99 Reborn 3/18/06 Pietenpol Racing Technologies project vehicle 90 Festiva L 5spd, Blue(not for long), 103k