[jbv]

Thanks, I'll be sure to check it out...


Follow up:

So it's clear that the front shocks would need the 1M spindle to mount. So it is unlikely anyone would ever change all four spindles just to get the 1M shocks and springs on a 135i, but this still leaves the question of 1M springs on a 135i.

Does anyone know the front/rear spring rate of the 1M springs?

135i spring rate:
• Front: 120 lb/in
• Rear : 350 lb/in

135i Performance yellow spring rate:
• Front: 160 lb/in
• Rear : 420 lb/in
*Thanks Gary for the correct specs

1M spring rate?:

Would the 1M springs match well with Koni adjustable yellow sport shocks? Perhaps, this combo is a better match than yellow springs and koni adjustable shocks?
Thanks again for everyones input.