Whiteline RSFB Question

[Coloradocurt]

Just bought a pristine 2011 135i M CV w/ DCT, pretty much all options and only 29K miles. As a first Bimmer for me, I'm very pleased. Now for "improvements."
First, this will be pretty much a daily driver with nothing more spirited than enthusiastic canyon carving on the agenda. Plans include replacing the RFT's with much better rubber, a square 18x8.5 Breyton GTS-R wheel setup, replacing/upgrading the rear subframe bushings, and after that, possibly a slightly stiffer (E92) front sway bar.
I've used the Whiteline products in the past on other cars I've "upgraded" and am leaning towards their RSFB product. Can anyone who has used the Whiteline RSFB's provide me with a Whiteline part number and a source with good prices.
Thanks, guys-
Curt

[chris_flies]

Here's all their parts for your car: https://whitelineperformance.com/col...ase-esi1607340

Part Number: KDT917

[Coloradocurt]

I was looking here and couldn't figure out exactly what I should be needing:
https://www.carid.com/search/rear+su...8e6/brand-3606

[chris_flies]

It's easier to search part numbers. CarID is crazy... https://www.carid.com/whiteline/rear...pn-kdt917.html

ECS has some similar ones. https://www.ecstuning.com/BMW-E82-12...Subframe/Rear/

I got these solid ones (no noticeable change in NVH, by the way). https://www.condorspeedshop.com/coll...me-bushing-kit

[duder13]

Like Chris said, it's the Whiteline KDT917. Had I known about the Condor one's that Chris mentioned, I probably would have gone that route, since NVH isn't an issue.

FWIW, if you're going to the trouble of subframe bushings, you may want to consider new shock/struts/springs, which should make a big difference.

[Esteban]

Originally Posted by duder13

Like Chris said, it's the Whiteline KDT917. Had I known about the Condor one's that Chris mentioned, I probably would have gone that route, since NVH isn't an issue.

FWIW, if you're going to the trouble of subframe bushings, you may want to consider new shock/struts/springs, which should make a big difference.

Was wondering since you mention it, do you have NVH issues with your Whiteline bushings? Was thinking that's a possibility for me in the future, which is why I'm asking.

[ShocknAwe]

Originally Posted by Esteban

Was wondering since you mention it, do you have NVH issues with your Whiteline bushings? Was thinking that's a possibility for me in the future, which is why I'm asking.

NVH isn't even an issue with solid aluminium. Ask me, I know.

I'd either go with inserts, or solid. There's a damn good reason M is using solid mounted rear subframes now Skip all the bushing replacements and I'd really rather avoid polyurethane in the suspension.

[Esteban]

Originally Posted by ShocknAwe

NVH isn't even an issue with solid aluminium. Ask me, I know.

I'd either go with inserts, or solid. There's a damn good reason M is using solid mounted rear subframes now Skip all the bushing replacements and I'd really rather avoid polyurethane in the suspension.

Got the Whiteline inserts and didn't notice much of a difference, which is why I was thinking of going with the Whiteline or M3 bushings.

[duder13]

Originally Posted by Esteban

Got the Whiteline inserts and didn't notice much of a difference, which is why I was thinking of going with the Whiteline or M3 bushings.

My car is certainly more locked down, but M3 front arms, M3 front sway, Bilstein B12, Dinan rear shock mounts, Whiteline 2-piece bushings and Manzo toe arms all went in together, so I can't isolate the individual improvements.

The main reason to do the Whitelines is that the install is easier on a 2-piece style, but I still got charged quite a bit to install them, so I'm not sure it made a difference with the shops near me. Had I known that, I would have probably gone with aluminum or those CondorSpeeds shown above. At least the poly Whitelines are still supposedly stiffer than the M3 bushings.

[Esteban]

So then I guess solid rear subframe bushings will be my next mod...

Who knows when tho, with the way I move. lol

[duder13]

Originally Posted by Esteban

So then I guess solid rear subframe bushings will be my next mod...

Who knows when tho, with the way I move. lol

[IMG]https://media.giphy.com/media/Pgr68XwvvAXrq/giphy.gif[/IMG]

That's what I would do, although, don't take my word for it. I think ShockNAwe above convinced me, but there is a lot more data from Whiteline users in these forums, and most seem happy, so I think they're fine. Either way, at least after looking around up here in Portland, I would expect about a $1000 install cost.

[Coloradocurt]

Fortunately, I have the mechanical experience/skills, tools, space and time for this as a DIY project.

[duder13]

Originally Posted by Coloradocurt

Fortunately, I have the mechanical experience/skills, tools, space and time for this as a DIY project.

That being the case, the 2-piece bushings, like the Whiteline, are apparently much easier to install, because you don't have to completely drop the subframe.

[Esteban]

Originally Posted by duder13

That's what I would do, although, don't take my word for it. I think ShockNAwe above convinced me, but there is a lot more data from Whiteline users in these forums, and most seem happy, so I think they're fine. Either way, at least after looking around up here in Portland, I would expect about a $1000 install cost.

It's not just you, it sounds like the proper way to do it is to go solid, and I don't want to have to do it again... er, I mean a third time.

[rowsdower]

The Whiteline 2-piece are very easy to install. Not only do you not have to drop the subframe very much, they do not have to be pressed in. You push them into the subframe with your thumbs - it's that easy. You do need a tool to press out the old bushings, but that can be made for $50 from pieces you can buy online (directions here). Lowering the subframe is not that hard to do 1 corner at a time - I did it with 1 floor jack and 1 jackstand. This is very doable in an afternoon and any shop charging you $1k is crazy.

[duder13]

Originally Posted by rowsdower

The Whiteline 2-piece are very easy to install. Not only do you not have to drop the subframe very much, they do not have to be pressed in. You push them into the subframe with your thumbs - it's that easy. You do need a tool to press out the old bushings, but that can be made for $50 from pieces you can buy online (directions here). Lowering the subframe is not that hard to do 1 corner at a time - I did it with 1 floor jack and 1 jackstand. This is very doable in an afternoon and any shop charging you $1k is crazy.

The thing is, the shops don’t have the tool to remove. I got quotes from two reputable shops here, one a BMW shop and the other a race shop, and both were around $1000.

[One28i]

check out this link. no issue from my end with the 2 piece design, easy install.

https://www.1addicts.com/forums/show...highlight=rsfb