GReddy AIR INTAKE SYSTEMS: Infiniti G37 2008-11 - Manual (Page 5)

Refer to Figure B for steps 7-12
Step 7: Remove the retaining clips from the top of the front bumper. 6
Step 8: Remove the 10mm bolts on the inside of the fenders. (Fig.B2)
Step 9: Remove the clip from the inside of the fender well.
Step 10: Remove the two 10mm bolts on the edge of the bumper on the inside.
Step 11: Remove the bolts from under the belly pan which connects the belly pan to the bumper.
Step 12: Remove the bumper.
REMOVAL
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Figure B
Figure B2