removing bottom bumper black plastic "pieces"??

newls196

Hi everyone, quick question: on the very bottom of my bumper there are black plastic "skirt" type pieces that everytime i leave and enter my driveway, i scrape on the concrete a little and its pissing me off very much! I was hoping i can take those little pieces off with no ill effect to cooling????? was thinking that maybe its like my camaro i had and those piece deflect air up and onto needed rad, p/s cooler, etc..??? Thanks

**EDIT** here is what im talking about sir, can i remove at least to 2 side pieces.... the center piece is NOT hitting the concrete, just the 2 side pieces..

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2012 370z
6MT "Sport Package" Z1 CSC, Z1 Test Pipes, ARK Catback, Injen CAI, SpeedBooster, Custom PCV Canister setup, Z1 dyno tune coming soon