It's not a wise idea to use OE brake pads in any brake system which is produced for performance driving. The main reason is that OE brake pads don't come with the exact friction elements to meet the demands of heavy braking. It is recommended that you use brake parts and brake pads of the same brand or, at the very least, of the same features. So if you are using Wilwood brake parts, it's best to use Wilwood brake pads too. The same recommendation goes for OE parts also.