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Vendor Imfamouns Tire Wear Solution!! (2021+ Model S & X) w/ EVPE shims

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Secret-EV

Member
Global Vendor
Jun 1, 2021
38
36
California

Imfamouns Tire Wear Solution ( Only for 2021+ Refresh Model S & X )
Product Links : https://secretev.com/products/evpe-camber-shim-kit?variant=44070650445986

The issue of tire wear has persisted in Tesla vehicles for several years, with each tire potentially costing up to $600 and having a lifespan of only 5-8k miles.

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One of the options on the market is an adjustable camber arm. The part itself would cost between $1k to $1.5k depending on the brand, plus labor, which is another 3-4 hours. It can cost as high as $2500 just to reduce the camber on the rear.

Adjustable camber arms are great for folks who track their cars and need the ability to dial in camber from event to event. However, for most owners who use their cars daily, the ability for adjustment is not as important, as the camber will be set at a certain amount and will remain unchanged for the rest of the ownership.
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At Secret-EV, we are looking for a solution that can permanently provide camber reduction at a reasonable cost.

In response to this challenge, we have developed a precision-engineered shim kit designed to mitigate camber-related issues and extend tire tread longevity.

Crafted from high-grade 6061-T6 alloy, our shims are meticulously machined to seamlessly fit between the camber arm and frame, effectively reducing camber misalignment.

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Part Cost​
Labor​
Alighment​
Adjustment on camber​
Overall total cost (Can vary from place to place)​
Adjustble Camber Arm​
$1000+​
3-4 hours​
Require​
Yes​
$1800~$2500​
EVPE Shims Kit​
$95~$125​
1-1.5 hours (DIY friendly)​
Require (only toe adjustment needed)​
Fixed​
$250~$500​

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We offer two options:

Silver Shim: Provides a camber reduction of 0.7 degrees, ideal for aftermarket wheels with more aggressive offset. For example, 21x10.5 ET35 or lower offset.

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Red Shim: Offers a camber reduction of 1.5 degrees, ideal for stock wheel setups or with 21x10.5 ET35 or higher offset.
(Red shims come with extended 10.9 grade carbon steel bolt)

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**Alignment is required after the shims is installed**
Recommended Toe (Both Model S & X)
Front Toe: 0.0° to -0.05°
Rear Toe: 0.10° to 0.20°

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For any questions, feel free to send us a message or email to [email protected]
 
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Model S Plaid with red shims installed:

View attachment 1036028
Looking at the camber in the before and current numbers. They are the same. Toe changed, but not camber. So the shims did not change the camber? I used shims to adjust camber in a Solo Race car. The shims were washers. Just watched the video, and saw initial camber was -2.4, so not sure where your chart is from. -2.4 is way too much for any street car, no wonder the insides wear out. Had some negative camber on my Model 3, and I flipped the tires on the rims and got another 10k out of the tires.
 
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Looking at the camber in the before and current numbers. They are the same. Toe changed, but not camber. So the shims did not change the camber? I used shims to adjust camber in a Solo Race car. The shims were washers. Just watched the video, and saw initial camber was -2.4, so not sure where your chart is from. -2.4 is way too much for any street car, no wonder the insides wear out. Had some negative camber on my Model 3, and I flipped the tires on the rims and got another 10k out of the tires.

The customer install the shims in the garage and that’s the reason before and after camber is the same. Main thing to know is the camber is now at around -1.0. (-2.5 before per customer) Toe was changed due to the camber reduction, therefore alignment is recommended.

Brian from i1Tesla had a shop install them and he did check alignment before & after shims is install.
 
The customer install the shims in the garage and that’s the reason before and after camber is the same. Main thing to know is the camber is now at around -1.0. (-2.5 before per customer) Toe was changed due to the camber reduction, therefore alignment is recommended.

Brian from i1Tesla had a shop install them and he did check alignment before & after shims is install.
-1.0 is a much better number for street use. Will improve the life of the tires. So many articles site the weight of the EV as a reason for excessive tire wear, but really it's the factory alignment settings that are causing this. Not just camber but toe as well. The rear toe in the above chart shows how off it was.
 
I just finished installing the red shim kit on my 2023 Model S. It was pretty easy and the instructions are good. I loosened all 6 bolts as instructed but was unable to install the second shim without using a pry bar at the bottom of the shock for leverage to move the suspension assembly and make space to install the shim. The red arrow in the photo shows where I put the pry bar. I also needed to use a swivel socket adapter to get around the shock to torque the bolt. I think the angle was shallow enough to not require adjustment of the torque setting on the wrench. I like the replacement bolts supplied by Secret EV. They have unthreaded shanks. I suggest before removing a bolt and installing the replacement, first tighten the other bolt so the hole doesn't move. I'm scheduled for an alignment at the Tesla Service Center in a couple of days. Hopefully they just ignore the modification since I haven't been able to find a shop willing to do the alignment.
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Reputable shop in south oc CA that can install these? Prefer and OCD shop that’ll torque to spec and baby the plaid. 😂
Not OC, but Monrovia Alignment installed my forged N2itive arms and did a great job. Small shop that was recommended by N2itive's owner.


These shims look like a good budget solution and smart that they supply a longer bolt.
 
Is there a 2012-21 Tesla model S - Shim kit version?
2021-21 Model S uses different design. Full arm replacement is require.

 
Below are my numbers (I couldn't attach a photo to this so see next comment) with the suspension height set to medium, 19" OEM wheels, and with the Secret EV red shims installed. Although I drive 90% or more going straight on the interstate with the suspension set to low, the Tesla service advisor stated that the alignment machine is calibrated for medium ride height and that's the height they have to use.
 
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