Good question. They were fitting ok with the bumper off, I believe they got squished a little when I put the bumper back on. That doesn't really affect anything about the CAIs. 
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2013 PW 370Z Touring+Sport, NAV
Tint 35% side, 18% back | RJM clutch pedal | ZSpeed SS lines | Stillen Gen3 CAI | Fast Intentions HFC and TDX 12'' CF CBE | UpRev
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