Exclusive trainers are generally vetted for malware and use more sophisticated injection methods to avoid triggering basic anti-cheat flags in offline modes.
Use your trainer exclusive for the Single Player campaign to enjoy the story and customize your cars, then disable it before heading online. How to Get Started nfs unbound trainer exclusive
EA and Criterion have specific "fair play" protocols for online sessions. Using a trainer to gain an advantage against real players can lead to: Temporary or permanent account bans. Loss of progress in your EA account. Being relegated to "cheater-only" lobbies. Exclusive trainers are generally vetted for malware and