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Tesla Model S / Model S Plaid (2021 - 2026+) GT Rear Strut Tower Brace 2
Tesla Model S / Model S Plaid (2021 – 2026+) GT Rear Strut Tower Brace
$2,295.00

Tesla Model S / Model S Plaid (2021 – 2026+) GT Rear Strut Tower Brace

$2,295.00

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The Unplugged Performance Rear Strut Tower Brace for the 2021 – 2026+ Tesla Model S Plaid and Long Range provides increased chassis rigidity, resulting in better in-turn response, tighter driving experience, and even reduced interior squeaks and rattles. The front suspension of the Model S is braced by the firewall and front strut tower bar from the factory; however, the factory setup for the rear of the chassis is absent of any bracing and is free to sway and flex under higher g-force loads when driving spiritedly or racing, or on uneven surfaces. Our Rear Strut Tower Brace solves this issue to eliminate rear chassis flex.

  • Improves rigidity for tighter, more predictable handling with less chassis slop, even on the soft standard air suspension.
  • Reduces curb-parked chassis flex from nearly 1” to zero flexion. On-track chassis flex reduction is even larger but more challenging to measure.
  • Nearly infinite reduction in flex between rear shock towers and 92% improvement in overall rigidity.
  • Customers report reduced interior squeaks and rattles in addition to the performance benefits.
  • Designed to retain full functionality of the rear parcel shelf and rear seat folding, and has minimal impact on storage capacity.
  • Easy 4–bolt quick removal and reinstallation. The center X portion of the bar is designed for easy and quick removal for when full rear seat-down storage is desired.
  • Precision-welded mild steel construction with billet machined attachment points and stainless steel hardware.
  • CAD developed and FEA tested for strength.
  • Utilizes factory mounting points.
  • Fully reversible installation with the only modification required being carpet trimming.
  • Black powder coating for a durable, scratch-resistant finish.
  • Any color and finish is available by request at an additional cost.
  • Lifetime warranty & 30-day satisfaction guarantee.
  • All necessary hardware is included.

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SKU: UP-MS2-136-1.1
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Product Details Product Details

Tesla Model S / Model S Plaid (2021 – 2026+) GT Rear Strut Tower Brace

The 2021+ generation of the Tesla Model S looks quite similar to the earlier generations on the outside, but the updated Plaid and Long-Range models are built on an entirely new chassis architecture that relies on the battery pack as a structural element.  While being an engineering masterpiece by Tesla that lowers the center of gravity, the impactful result is an ultralight construction that allows for a significant amount of flexion in the upper portion of the chassis. The effect of this flex can be felt from the driver’s seat primarily through sway, slop, and interior noise such as squeaks and rattles caused by the movement occurring in the upper chassis. 

This is the issue that the Unplugged Performance Rear Strut Tower Brace solves. By bracing both sides of the rear strut perches together we are effectively removing all flexion that occurs in the chassis from right side to left side, as well as fore, aft and cross-chassis flexion. The benefits of eliminating chassis flexion with the Rear Strut Tower Brace include improved steering turn-in, more predictable handling and less interior squeaks and rattles. 

Increasing rigidity by bracing the rear strut perches of a car is common practice in many legendary and highly accredited sports cars and supercars including the Porsche 911 GT RS, Nissan GT-R Nismo, various models of Ferrari and Aston Martin, to name a few. Most of these vehicles have chassis engineered for rigidity and still find evidence of the improved effects of their factory rear strut tower braces. The benefits of our Rear Strut Tower Brace on the Tesla Model S chassis is even more extreme.  Driving is believing!

In our development and testing process, we measured chassis flex based on the movement of the rear strut perch relative to the right side with one wheel up on a curb and the other on the ground, both in factory spec, and with our brace installed. In this scenario, the delta is almost a full inch reduction in flexion and that’s with no lateral g-forces applied!  The Unplugged Performance Rear Strut Tower Brace takes the Model S’s driving experience from loose and floaty to smooth, solid, and precise.

GT Rear Strut Tower Brace Includes

  • (1) Cross Bar
  • (4) Mounting Brackets
  • (8) Mounting Bracket bolts
  • (2) Lower chassis mount bolts
  • (2) Upper chassis mount nuts

Reviews Customer Reviews

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      WHAT OUR CUSTOMERS SAY

      RATED 4.97 (302 REVIEWS)
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      With real reviews from real customers, shop UP products for your Tesla Model S, 3, X, Y and Cybertruck with confidence. Leave reviews and earn up to 2000 UP Rewards points each, redeemable towards exclusive UP Products.

      Moto Miwa definitely made the right recommendation for the Moderate Lowering springs for my Model 3 Performance. They gave it the perfect balance between drop and functionality - good ride quality and no scraping. Also, in another conversation regarding tire wear, Moto suggested I purchase the...
      mrenology February 24, 2023
      A must to get with the coil overs installed on my model 3. I’m sold on these and are definitely getting the upper control arms next.
      Frank August 09, 2023
      Dominic Marcu - Racing Driver Just perfect for my car
      Dominic M. April 12, 2023
      Excellent product from a great team with great customer service! The factory Model 3 Performance's suspension is rather underwhelming, so once you add the Dual Rate Linear Springs along with the Sway Bar kit and Luxury Suspension Kit it completely transforms the car! UP also stands by their product...
      Chris February 27, 2024
      I absolutely love this coilover setup. The build quality out of the box looked so great, heavy duty, well made, and absolutely beautiful. It takes the Model 3 Performance handling to a whole new level. It feels planted, quick, and incredibly responsive through corners. When paired with a good set of...
      Ryan S. January 10, 2023
      Went with the burnt titanium, simply looks gorgeous with the finish!
      Megatron November 19, 2025
      The Plaid is a hefty car, and this is particularly felt at bends. This simple upgrade makes a welcome improvement in maneuvering the vehicle. It gives a greater sense of control.
      raviprabhakar October 03, 2022
      Dramatic improvement over stock brakes! Can’t imagine roll racing or drag racing without them
      patch2u17 October 20, 2022
      We got these (BBK) installed on our S Plaid was the best think we could have upgraded first. They feel so great when stopping on the big end on the tracks, So much light weight as well from the factory stock brakes. Thanks
      '@EvSmokeATX November 10, 2022
      After lowering my car, the stock end links kept making this clunking noise, but I installed these and it made the noise go away. The end links also made the car feel a bit more comfortable, but cornering still felt great.
      Hao N. August 01, 2025
      Beefy design, necessarily. Need the toe arms in conjunction with rear camber arms to dial in toe at the same time, otherwise toe will be out of spec when adding negative rear camber.
      Shimmy October 23, 2024
      This bumper is awesome for my Cybertruck! It’s built tough with A36 steel, looks killer with the black powder coat, and the optional 11-inch LED lights are super bright. It’s great for off-roading with a better approach angle and hi-lift jack points. Installation was easy with the video guide,...
      Tim W. September 28, 2025
      I ordered my satin graphite UP x BBS Flugplatz wheels in March 2022 and got them delivered and installed in June 2022. The wheels were ceramic coated after delivery. I am running 255/35 Falken tires (all-seasons). These wheels have an amazing design and paint finish. They do a great job at exposing...
      Kyle R. November 03, 2022
      Product is top notch when I installed them it was like switching from a 1 piston sliding caliper to a bbk. Also cold performance and noise are really good
      Christos K. November 04, 2022
      I upgraded to these from my stock rotors and pads primarily for the lighter unsprung weight as I take my car to the drag strip on occasion. There was a noticeable difference in how early I was to stop in the slow-down zone after the 1/4 mile. I also bought their Stainless Steel Brake lines and...
      Kyle S. September 24, 2022
      LOVE my new UP-03 wheels. Super light, super strong and they look so good. Super high quality finish on the wheels too, worth every penny. Have had the wheels for just a few days and have gotten tons of compliments on the road and at the track. These are the best wheels you can buy for your Tesla,...
      zackfeldstein9 January 10, 2023
      My 2021 Model Y performance rode very harsh and bumpy. Like the suspension bottomed out on every pothole. I did the suspension upgrade and it’s a HUGE difference. My car rides great now. It handles the potholes no big deal now. I wish I had done this three years ago when I got the car. Sandy...
      stevelakeport September 20, 2024
      My 2019 Performance Model 3 is great, but with the heavy weight of this EV the cornering at high speeds was disappointing. I recently added these Dual Rate Lowering Springs to the UP Sway Bars, and the handling is definitely getting better! The initial spring rate makes the bumps less jarring with...
      jim.talbot December 27, 2022
      You can see my photos under Steve Guevara. Wow, what to say about this spoiler. There are so many incredible things added to my SMG3 that since I have brought it home less than a week ago, I have had more that fifty conversations from strangers that absolutely have to have this spoiler. It...
      smgdcw November 16, 2022
      I have been using my 2021 Model Y Long Range with the UPP Sway Bars for a bit over a week now and I can say that from the process from ordering to finally driving my car around has been extremely painless. I ordered my sway bars and a immedietly I was in contact with customer support to ensure that...
      saketh.kollu October 03, 2022
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