i had a set on my 135. nice quality pieces
the fronts are adjustable easily, the rear shocks need to be removed to adjust them. they are koni yellows.
height adjustable, and dampener too.
obviously can't comment on the M roadster but they were nice enough, just a pita to adjust the rears.
i couldn't get any spring rate info on mine either.
i ended up taking them off and switching to eibach pro kit which was supposed to ride great. they were probably worse if anything, then after i got rid of my runflats the ride was well sorted and handles much better.
didn't go back to coilovers due to the fact i'm not going to track the car and can sell them to put the money towards coilovers on the m.
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16 m4 vert, 18 X6M, 22 Tesla MYP, 21 Plaid, 17 Ram
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