the best way would be to go with a thermostatic cooler or sandwich plate, because the stock filter housing diverts oil to the coolers by pressure in the system, putting a thermostat lets the oil get to running temp then converge to the cooler to maintain said temp m ind you a full conversion can cost quite a penny, but is a really well known way to convert from that annoying filter housing
Here's a link to help you out if you do conversion
http://www.supramania.com/forums/showthread.php?t=62838