Amsoil filter if you are crazy about your oil and have deep pockets. I use Motorcraft oil and filters on everything, change every 5k-6k miles and its all been good.
2000 Mustang GT Steeda #0048 34k miles. 99 Cobra 4V swapped, FTBR IRS swapped, exhaust, tuned by James Gordon.
Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.