I like small, subtle OEM-looking wings, and am curious to know what fits the ILX.
I know it's pictured on a TSX, but look at the curvature of the spoiler vs the TSX's flat trunk.
The ILX's trunk is more like this spoiler's curved shape which in all, just may look right at home after paint matching.
I think one would have to tweak the mounting feet on the spoiler so that it fits flush with the ILX trunk. (Curved trunk vs flat feet on the spoiler)
It's a Remin spoiler from Carid.com, Item Number: 4056169. It's kinda similar to the recent Dodge Charger SRT8 spoilers.
*Not a fan of rice, do not label me as an Ricer! This spoiler from what I can tell is not a Fast and the Furious wing!