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      03-06-2013, 01:18 PM   #1
Tuner1
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TMS Solid/Delrin rear subframe mounts - best mod!

The TMS Solid/Derin rear subframe mounts are one of the best mods I have ever done!

I debated this mod for months worried that the solid mounts would intorduce too much NVH for my liking but I never liked the vague feeling and lack of feedback through the rear suspension wit the stock rubber bushings. Also, with the added power of my ESS VT2-650 kit the car required slight steering corrections under WOT in a straight line due to bushing deflection and this really bothered me.

It is important to note that I am ultra sensitive when it comes to NVH and other subtle noises and sensations in a car so when I say that the Delrin mounts add close to zero NVH you can trust me! If someone snuck into my garage and installed the mounts at 2am I doubt I would have ever noticed, apart from the super solid and precise feel they give at the rear of the car.

As an added bonus, the mounts work more harmoniously with the DCT and actually reduce clunking and elastic-banding in the driveline. Now when the DCT engages and disengages the clutch at low-speed the car feels more refined. The mounts have also reduced some of the harsh 'bang' during WOT shifts (S5 setting + VT2-650!).

No wonder BMW uses a solid subframe on the M3 GTS and CRT models

If you were on the fence about this mod - DO IT! Money well spent
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      03-06-2013, 02:07 PM   #2
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      03-06-2013, 02:36 PM   #3
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Check out my sig...I did these last year and it would do it again. I love this mod.

i even did a review on it, its somewhere in the Suspension tech threads.
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      03-06-2013, 03:10 PM   #4
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What was the labor cost on doing these along with the diff bushings? Just curious.
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      03-06-2013, 03:14 PM   #5
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Who can install these around Orange Country, CA?
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      03-06-2013, 06:33 PM   #6
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Quote:
Originally Posted by thekurgan View Post
What was the labor cost on doing these along with the diff bushings? Just curious.
Not really sure, I had it done all at the same time with what u see in sig...sorry

If I had to estimate, I would say this was a 4hr job.
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      03-06-2013, 07:10 PM   #7
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Quote:
Originally Posted by italyix View Post
Not really sure, I had it done all at the same time with what u see in sig...sorry

If I had to estimate, I would say this was a 4hr job.
Prego! I'll call around a few indy places.
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      03-06-2013, 07:35 PM   #8
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Had these done too and then proceeded on a cross country trip love the solid feel of the car, and agree there is almost zero increase in NVH. It's a big job though as the rear subframe needs to be dropped to do it. Would try and coordinate it with some other job (2 birds, one stone) as I did it with a rear sway install...highly recommend it!
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      03-06-2013, 07:47 PM   #9
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For you guys that have the solid subframe bushings, or the delrin for that matter, why wouldn't the car come like this stock like the F10M5? I don't see any reason why it shouldn't, cost isn't even an issue at build time.
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      03-06-2013, 07:54 PM   #10
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Quote:
Originally Posted by italyix View Post
Not really sure, I had it done all at the same time with what u see in sig...sorry

If I had to estimate, I would say this was a 4hr job.
Quote:
Originally Posted by klammer View Post
Had these done too and then proceeded on a cross country trip love the solid feel of the car, and agree there is almost zero increase in NVH. It's a big job though as the rear subframe needs to be dropped to do it. Would try and coordinate it with some other job (2 birds, one stone) as I did it with a rear sway install...highly recommend it!
Do you still get a lot of wheel hop when you break traction with these bushings?
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      03-16-2013, 01:15 PM   #11
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Quote:
Originally Posted by thekurgan View Post
For you guys that have the solid subframe bushings, or the delrin for that matter, why wouldn't the car come like this stock like the F10M5? I don't see any reason why it shouldn't, cost isn't even an issue at build time.
Comfort....there is NVH added that 99% of BMW owners don't want to hear.
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      03-16-2013, 05:30 PM   #12
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Nice review! Thanks for sharing!

Quote:
Originally Posted by klammer View Post
Had these done too and then proceeded on a cross country trip love the solid feel of the car, and agree there is almost zero increase in NVH. It's a big job though as the rear subframe needs to be dropped to do it. Would try and coordinate it with some other job (2 birds, one stone) as I did it with a rear sway install...highly recommend it!
I was VERY skeptical of people getting these solid subframe mounts. This is some great news to hear from a fellow Chicagoan! Rest assured, this is now officially on my very long list of things to do
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      03-17-2013, 04:11 AM   #13
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Quote:
Originally Posted by biggynuts01 View Post
Who can install these around Orange Country, CA?
Give the guys at Platte Forme a.g. a call, they have a special tooling to remove the subframe bushings with using a press.
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      03-17-2013, 11:51 PM   #14
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Quote:
Originally Posted by biggynuts01
Who can install these around Orange Country, CA?
try MRF engineering in irvine/lake forest. very knowledgeable and very perfectionistic.
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      03-18-2013, 12:04 AM   #15
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great info. Cheers!
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      03-18-2013, 03:29 AM   #16
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Looks like I will have to add these to my to-do-list!
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      03-18-2013, 01:27 PM   #17
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Quote:
Originally Posted by klammer View Post
Had these done too and then proceeded on a cross country trip love the solid feel of the car, and agree there is almost zero increase in NVH. It's a big job though as the rear subframe needs to be dropped to do it. Would try and coordinate it with some other job (2 birds, one stone) as I did it with a rear sway install...highly recommend it!
Where did you got these installed in Chicago? I'm very interested to get these.
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      03-18-2013, 02:55 PM   #18
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Quote:
Originally Posted by klammer View Post
Had these done too and then proceeded on a cross country trip love the solid feel of the car, and agree there is almost zero increase in NVH. It's a big job though as the rear subframe needs to be dropped to do it. Would try and coordinate it with some other job (2 birds, one stone) as I did it with a rear sway install...highly recommend it!
I will have to check it out at Gingerman!
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      03-18-2013, 05:11 PM   #19
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Quote:
Originally Posted by Richard@M-World
Quote:
Originally Posted by klammer View Post
Had these done too and then proceeded on a cross country trip love the solid feel of the car, and agree there is almost zero increase in NVH. It's a big job though as the rear subframe needs to be dropped to do it. Would try and coordinate it with some other job (2 birds, one stone) as I did it with a rear sway install...highly recommend it!
I will have to check it out at Gingerman!
Yes! Here's hoping for nice weather!
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      03-19-2013, 07:21 PM   #20
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i have these same mods on my car (335is) and still got wheel hop in the rain so i got a diff lockdown kit which eliminated the wheel hop. other M3 owners have done it and enjoy the same results. Its made by defiv just google it or look it up in the forum



Quote:
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Do you still get a lot of wheel hop when you break traction with these bushings?
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      05-21-2013, 08:51 PM   #21
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Any updates here?
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      05-21-2013, 08:53 PM   #22
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Quote:
Originally Posted by biggynuts01 View Post
Who can install these around Orange Country, CA?
We can.
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