Will this wing interfere with trunk lid operation?

No. The TKO profile is designed to clear the stock lid travel. Before installation, verify your trunk opens fully with the wing mounted by dry-fitting it in place. If you've added additional weatherstripping or modified the lid, test the clearance manually.

What mounting holes does this use?

This wing integrates with the factory trunk lid and quarter-panel fastener locations. Confirm the hole pattern matches your vehicle's structure before final installation. If you've welded or reinforced the deck lid, verify hole alignment beforehand.

How stable is this wing at highway speed?

FRP construction is rigid enough to remain stable across normal driving speeds when properly torqued to the trunk structure. Once installed and fastened, tighten all bolts to the specifications in your vehicle's service manual. Check fasteners again after your first 100 miles of driving.