Steve, you'll be fine with the Fram HP6, it's a true, full flow racing filter, the only Fram filter worth anything. Stay away from all other Fram filters.
Expect to pay top dollars, $18 or more for either.
I just switched to a double filter set up and I am using the Wix 51515R.
If you are interested in a case of 6 HP6, send me a private email, I'll make you a deal you can't refuse.
