Well, I doubt if the trunks are the same widths, and, personnally, I don't think the square look of the Cougar wing would blend in with the Mystique's rather rounded rearend. My 2 cents...
Eric B.
Ottawa, ON, Canada
98 Mystique V6 5spd. Toreador Red
Modified Airbox with K&N drop-in, Cool Blue bulbs, Homemade solid brass shifter knob, Sony CDX-L300 head unit
http://photos.yahoo.com/LBuzzer/