Suspension is the first thing I would check. Probably some wear on one of the ball-joints, tie rods or upper control arms.
Does it happen at a specific steering angle or does it happen when there is some load on the wheels while cornering? If it always happens at the same angle it can also be the steering rack. I've just had mine replaces as there was too much play at the axle where the steering rack is connected to the steering wheel, that resulted in a "clunk / click" at a specific angle of the steering wheel.
Does it happen at a specific steering angle or does it happen when there is some load on the wheels while cornering? If it always happens at the same angle it can also be the steering rack. I've just had mine replaces as there was too much play at the axle where the steering rack is connected to the steering wheel, that resulted in a "clunk / click" at a specific angle of the steering wheel.