So I was on the Kennedy last night in the GTO (Cyclone Gray 06) and I was following a white Evo that was wingless, I think it had the cyclone generator, and for sure catless exhaust... and it had a white sticker on the rear driver side window... is this anyone's car? It sounded real nice

 

Theres a thread for this... IL spotted thread.
And by the way its a vortex generator.

 

That may have been Eddy...Hugh, Eddy and I were cruising on Whacker and then 41...going very fast...