Aftermarket battery?
I would say go with the ford motorcraft that it came with. Is this the first time you're replacing the battery? If so 6 years aint too bad. I know I have been impressed with mine after leaving the radio (with an amp and sub) turned on quite high for hours on end and it still was going strong after 5 years. Do not know a lot about the other batteries out there but I have no reason to not get another motorcraft with the performance I have gotten so far.


