13 row or 16row
unless u want to roof mount a 19row
one of the easiest ones to come by are the G-rex oil coolers im sure there are a heap more but for me thats the quickest ones
HKS also does their own brand.. PWR are nice since ur on the coast.. can drop down to ormo or whatever that place is called
make sure it has a inbuilt thermostat.... be nice to get a oil filter relocator as well.. makes hassle free..