318 springs vs. 325 springs

[AsharC]

As the title states, is there any difference in the springs, are they interchangeable?

Thanks.

[reelizmpro]

Spring rates are different. If you put 325 springs on the 318, it will ride high and stiff. This is referring to OEM springs.

[MR 325]

But yes, they interchage.

[AsharC]

what about 318 springs on a 325?

[KenC]

I have 325 H&R Sports on my 318is and it's pretty damn low.

[jquirit]

I have 325 H&R Sports on my 318iS as wel, and it rides pretty nice. My parents don't complain when I have to shuttle them around in the car which is a bonus (my main concern with going with H&R Race).

[shaferbm]

What about the converse though. Will it ride like garbage with 318 springs on a 325 car? The rates on the 4cyl springs have got to be softer.

[Ether-D]

I just put 318i ST springs on my 325i cabrio and I love it so far.

[Vivek]

There's gonna be a slight difference that you probably won't really notice.