[dhanni848]

Hi - about to purchase some Koni yellows to pair with Eibach sportlines. I want to replace my bump stops while I'm at it.

Can someone please confirm that it is this:

Front E36 M3 3133 2225 377
Rear E86 Z4 3353 6770 350

Also, anyone know the cheapest place to buy these other than eBay? For all on eBay shipped its approx. $70-75

Thanks!

[dhanni848]

No one!

[mashimarho]

Not worth it. Contact @Supremepower
They will get you better bump stops.

[dhanni848]

Thanks! I have emailed them.

[mlifxs]

here's a better idea.

Go to realoem.com or getbmwparts.com and search on your part numbers. That way you'll know if your original plan is correct.

Or, if you're lazy, just google the numbers and see what you see.

[dhanni848]

I just want to make sure these are the correct stops. I can find the stops, but just want to know it will work.

[mlifxs]

Originally Posted by dhanni848

I just want to make sure these are the correct stops. I can find the stops, but just want to know it will work.

I guess define "it will work". Then, hopefully someone who has Sportlines can help you out. In general:

If you're running stock 3 series bump stops now, your new bump stop choice will be shorter than your stocks and give you more suspension travel, which is good from a ride quality angle, since your springs are going to lower and take suspension travel away.

I don't have experience with Sportlines, but from what I've read, they'll drop fairly aggressively. So IF you end up rubbing after installing shorter bump stops, you could consider:

1. Removing the springs and going back to where you were.
2. Putting your old stops back which might keep you from rubbing but will rob you of suspension travel with the new springs.
3. Leave your new shorter stops on and consider something called "packers" which add additional height to your shorter stops. I think this is where the other poster is going, sending you to SupremePower.

[dhanni848]

I appreciate the options and opinion.

I should probably change the title. I am more looking for people who have lowered, and did change their bump stops to shorter ones.