Hood pin is highly recommended since it would prevent the car from remote starting when the hood is opened.
Since im assuming you are wanting to use the 3x lock start feature of the EVO-ALL, you would need the Flash-Link Updater to enable the option for 3x Lock start i nthe eVO-ALL. It is not a default option since priority on the EOV-ALL is that it is to be used with a remote starter. Depending on whom you buy the unit from, you can ask them if they can preflash and select the proper options for you so that you do not have to buy the flash-link.. Although.. the Flash-Link is tool and highly recommended.