03 Cobra lower a arms

M-3075-D is the part number for the 03-04 Cobra a-arms. As far as I am aware, 99-02 Cobra a-arms are identical to the GT a-arms, it's only the 03 & 04 Cobras. There should be a part number on them somewhere.

If the bushings aren't damaged and the rubber boot on the ball joints isn't ripped, $60 is still a good deal for newer control arms. However, if yours are fine I would not replace them yet. The 03-04 a-arms have better bushings for less flex when cornering, and the ball joint is a "low-friction" version. The stamping is a bit better so you can turn about an extra 10% lock-to-lock. Also be aware that the 99-04 a-arms will add an extra 3/8" to your wheelbase. This may make one or both of your wheels stick out from under the fenders a bit.