I wont be able to tell you if it would work or not, it depends on a lot of factors, you would have to know what amount of cubic ft would be needed for the sub enclosure... as compared to what you have in you car, which you would have to measure, and compare, remember if you are gonna use the space on from the spare tire location then your enclosure would be more intricate to build and may cost more.. You can use card board and make mock box to see what and how it would fit, however again you need to know the amount of cubic ft needed, which, would depend on the woofer..tuning etc.... Alternatively you can use one 18 instead.