Bringing Brian back could doom the sequel with a move that alienates long-time Fast & Furious fans.

The Fast & Furious franchise isn’t just about fast cars, louder-than-life action, and Vin Diesel saying “family” in a gravelly voice. Okay, maybe it is mostly that.

F1, collected $3.7 million on its third Friday at the box office in North America and is on track to hit $150 million mark.