The spring rate wont be different with HRs because its the exact same part number but not sure on OE. I installed 335i Sport Springs on my 328i and while it lowered it very slightly, there is nearly no difference in ride.
Clarence, what do you mean that it might make it worse? How......?
Not arguing with you but if he wants a stiffer suspension and potential lowering, changing to a stiffer/different spring rate would be the goal. For example: If you order H&R Sport Springs as I mentioned they will have a slightly different spring rate than the OE, which is the intent of most people buying them to stiffen and lower the car. if you go with Super Sports then they are lowered even more and the spring rate gets even stiffer, harsher ride.
That why I ask what you mean by worse....
Quote:
Originally Posted by clarence
Like for like the spring rates are different for 328i & 335i, so if u just fit the springs from 335i into a 320i it may make things worse.
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