I made a couple extras. Selling them to local miata owners.
The splitter is modeled after the track-proven TDR splitter without the indentation in the middle. This provides more surface area for better aero. It is constructed of 3/16" thick ABS textured plastic. This splitter comes with all hardware needed which includes nylon nuts and bolts for installation. This WILL fit under the stock bumper.
Mounted below the r-package lip.
It can also be mounted below the stock front bumper!
$80 each. Cheaper than the TDR one by about 30 bucks.