msvara wrote:
They may fit but the M is heavier so the spings may not be rated for that weight. Since you already have them I would try it out. If the springs are too weak adjust the preload a bit more.
I called Tein and they told me "after their disclaimer" lol that they will fit physically just the spring rate is different, as you stated.
The kit the guy has the springs are 500 lbs/in front & rear. The Tein site show various rates for the M as being 390, 430,670 for front and 510 or 560 for rears.
I can get these for $500. Not sure though.
What doth the forum sayeth? lol