Originally Posted by tom @ eas
No, it's not true. You're perfectly fine with a spring swap and your shocks will lead a long and happy life.
Will it be as long as a factory BMW Spring/Shock combo? Probably not. But it's not going to accelerate wear to that degree.
Sorry but are you familiar with suspension? There are negative consequences to just a spring, shock absorbers do tend to fail quickly because they can't cope with such a narrow and harsh range of compression and rebound stroke. Your car will suffer from bump steer (when the car jumps sideways mid-corner when it hits a bump or dip in road) this happens when your suspension will bottom out (there will literally not be available travel) and contacts the bump stops with every road imperfection. Oh another thing you will need to get your car aligned afterwards as it needs to be set back to where it should be.