I just leased a dark grey Mazda6. It currently comes with the standard exterior trim. I am now thinking about putting on the Sport front and rear full bumper (Aero Bumper?) from the Canadian GFX package. Has anyone done this? My dealer has called Mazda Canada and they say that the fenders would have to be replaced as well. Is this true??? By the way the front bumper is only $280 CND and the rear I think $350. Pretty cheap for body parts. Fenders are $170 a side.