Sure you can Mike. Best when engine is cool. Firmly grasp metal shield on each plug wire and gently twist and pull to remove them. Make sure you have the right size spark plug socket (should have a universal neck). Remove plugs, inspect same for abnormal conditions. Correctly gap new plugs (think it's about 35 thousanths) Install and torque to about 10-12 ft/lbs. Don't overtighten (aluminum head could strip threads). Replace plug wires. Drive away..
1987 BMW 325