GrimmSpeed BRZ//FR-S Intake - Manual (Page 10)

12. Using the two bolts that secured the factory airbox, bolt the GrimmSpeed airbox into
the car (figure 16). Torquing to 10ftlbs is plenty.
13. Next, install the hump hose coupler onto the throttle body. Tighten the hose clamp
holding the coupler to the throttle body (figure 17). Snug will do.