Trackouts are priced here - https://sfrbeats.com/pricing?q=Trackouts and varies a bit depending on the beat. Once you've added a beat to your shopping bag, the price for the trackout option will show once you've selected that option. You can also upgrade any previous order to trackouts by going to your orders page and clicking on the order, then click "Trackouts Upgrade" to see the price in your cart.
HOW TO BUY TRACKOUTS:
If you want trackouts to a beat you ALREADY PURCHASED, watch this video: