I added the lawn edging air dam a couple of weeks ago and have driven about 1500 miles on it so far and I'm impressed. It is very durable and has taken a coulple of hits from speed bumps and parking stops and you wouldn't know after. It's flexible enough that it just bends out of the way. I got lucky by finding some in the dumpster and it even had the ridges at the bottom cut off. I just used wood screws to attach it directly to the plastic bumper.
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Civic Build Thread
Your grammar is appreciated.
3.788 Civic CX final drive, air dam, 1st gen HCH 14" wheels and Michelin Defender 175/65R14 LRR tires