Bilstein B12 Lowering Kit
#1
Junior Member
Thread Starter
Bilstein B12 Lowering Kit
So I ordered this kit and want to buy everything new, which I did with regard to new strut bearing. When I went to buy new bump-stops for the fronts, I struck out. The KYB SB105 that is called out for this car apparently ONLY fits OEM struts.
I read somewhere that Bilsteins may have "internal bump stops". The fact that nothing came with the kit makes me wonder. Do I just put them on without the bump stop? The SB105 has a 27mm ID and the Bilstein is 40mm where this needs to go.
Anyone else have a similar problem?
https://www.lmperformance.com/868097...-and-rear.html
I read somewhere that Bilsteins may have "internal bump stops". The fact that nothing came with the kit makes me wonder. Do I just put them on without the bump stop? The SB105 has a 27mm ID and the Bilstein is 40mm where this needs to go.
Anyone else have a similar problem?
https://www.lmperformance.com/868097...-and-rear.html
Last edited by rmetzner49; 05-28-2020 at 05:06 PM. Reason: needed to add link
#2
Senior Member
I'm using the same shocks/struts (installed them about 3-4 years ago), but with H&R springs. I also was surprised that they don't require bump stops, but that is how they are designed.
#3
Senior Member
BTW there will be one more difference, original front struts have small dents (flat spots) in order to prevent tires rubbing against them. It's not an issue for stock wheels/tires, but since you are running aftermarket wheels be aware of that. With my front 225 tires (8.5" rims) I do have some tiny marks of the struts there, but nothings concerning.
#4
Junior Member
Thread Starter
Thanks for the tip on tire clearance. I'm running TSW Valencias which come as 18x8 for the front and 18x9.5 on the rear, so that 1/2 inch less may save the day. I'll be sure to keep an eye on that.
As it turns out, I contacted Bilstein's Tech Support and asked what they recommend. Their rep informs me THIS model of strut has "Internal" bump stops, which is why the kit doesn't supply them.
FYI my kit came with Eibach springs.
As it turns out, I contacted Bilstein's Tech Support and asked what they recommend. Their rep informs me THIS model of strut has "Internal" bump stops, which is why the kit doesn't supply them.
FYI my kit came with Eibach springs.
Last edited by rmetzner49; 05-28-2020 at 08:43 PM.