Tesla Model S / Model S Plaid (2021 – 2025) GT Rear Strut Tower Brace

It ties the two rear strut perches together so the chassis stops flexing side to side, fore, aft, and across the car. From the factory the 2021+ Model S braces the front with the firewall and a front strut bar, but the rear has no bracing and is free to move under load. Adding the brace gives you sharper steering turn-in, more predictable handling, and fewer interior squeaks and rattles.

The page cites a 92% improvement in overall rigidity and a nearly infinite reduction in flex between the rear shock towers. In UP testing with one wheel on a curb and one on the ground, the brace cut chassis flex from almost a full inch to essentially zero, and that was with no lateral g-force applied. On track the reduction is larger but harder to measure.

No. It is engineered for the 2021 through 2025 Tesla Model S and Model S Plaid, and the page states it is not compatible with the 2026+ Model S. It uses the factory mounting points on that generation’s chassis. If you run a 2021 to 2025 Long Range or Plaid, it bolts to your existing hardpoints without new holes.

No. The brace is designed to keep full function of the rear parcel shelf and the folding rear seats, with only minimal impact on storage capacity. The center X section removes quickly with four bolts when you want a completely flat, seats-down load space. That quick-removal design is why owners can keep it on daily and still haul long cargo occasionally.

Precision-welded mild steel with billet-machined attachment points and stainless steel hardware. It was CAD developed and FEA tested for strength, and it wears a black powder coat for a durable, scratch-resistant finish. Any other color or finish is available by request at extra cost. All mounting hardware is in the box: the cross bar, four brackets, eight bracket bolts, and the chassis mount bolts and nuts.

Installation is fully reversible and uses factory mounting points, with the only permanent change being some carpet trimming. The four-bolt center section makes removal and reinstallation quick. If you would rather not do it yourself, our team in Hawthorne, CA can install it for local Los Angeles owners, and we will follow up with a quote and appointment times once you request it on the product page.

The 2021+ Model S uses its battery pack as a structural element, which lowers the center of gravity but leaves the upper chassis free to flex. You feel that flex as body sway and interior noise. Even purpose-built sports cars like the 911 GT3 RS and GT-R Nismo ship with rear strut braces, and the gains on the Model S chassis are larger. Driving is believing.

Both. On the street, owners report fewer squeaks and rattles and a tighter, more solid feel even on the soft standard air suspension. On track, the flex reduction is bigger and shows up as more consistent turn-in. It pairs well with a fuller handling build like the Stage 2 Street and Track Handling Kit, and on its own it takes the car from loose and floaty to smooth and precise.

They solve different problems. Sway bars and adjustable arms tune how the suspension moves and how the car sits; the brace stops the body structure itself from flexing above the suspension. Many owners run both together. To pair chassis stiffening with full geometry control, look at the High Performance Suspension Package, which bundles the arms and adjustability the brace does not touch.

This part carries a lifetime warranty plus a 30-day satisfaction guarantee, which is stronger than the coverage on most bolt-on parts. Installing it also does not automatically void your Tesla warranty; under the Magnuson-Moss Warranty Act, Tesla would have to show the brace caused a specific failure to deny a claim. Keeping your factory configuration reversible, as this brace allows, makes that conversation simple.

Tesla’s warranty covers factory-installed parts, but it does not automatically void your warranty if you install aftermarket components like Unplugged Performance brake kits. Under U.S. law (Magnuson-Moss Warranty Act), Tesla must prove that an aftermarket part caused a failure in order to deny warranty coverage. Our parts are engineered to work harmoniously with Tesla OEM Brake systems and can be professionally installed by Unplugged Performance in Hawthorne, CA or by an authorized installer to minimize risk. That said, any damage directly caused by misuse or improper installation may not be covered. We recommend retaining all factory parts so you can revert to stock if needed. Many Tesla owners enjoy peace of mind by using Unplugged Performance products, which are extensively tested and installed by certified professionals. If warranty concerns are top-of-mind, our team can help clarify compatibility and installation best practices to ensure a worry-free experience.

Unplugged Performance offers a comprehensive warranty on all parts and installations performed by our certified technicians. Warranty coverage applies to defects in materials and workmanship on items including lowering springs, coilovers, big brake kits, brake pads, stainless steel brake lines, shocks, and more. Should any covered part fail under normal use or display premature wear, we will repair or replace it at no additional cost—assuming the component was installed by us or at one of our authorized partners.

This warranty is valid for 2 years or 24,000 miles, whichever comes first, excluding consumable products like brake pads, rotors, and tires, starting from the installation date. Coverage extends to labor for warranty repairs when performed by Unplugged Performance or an authorized installer. It does not cover damage resulting from misuse, accidents, off‑road use, improper installation not done by us, or modifications that aren’t factory-approved.

To file a warranty claim, simply contact our service team. We’ll guide you through inspection, shipping (if needed), and repair or replacement logistics. transparencia and top-tier support are what you can expect from Unplugged.

Installing aftermarket parts does not automatically void your Tesla warranty. Under the Magnusson-Moss Warranty Act (www.sema.org/sema-enews/2011/01/ftc-validates-right-to-install-aftermarket-parts), a manufacturer cannot void your warranty simply because you installed aftermarket parts. Tesla must prove that the aftermarket part caused the specific failure in question to deny a warranty claim. UP recommends retaining all factory parts to allow reverting to stock if needed. 

To find authorized installers or retailers of Unplugged Performance products in your area, please use the form on our website to provide your location details. This will help us connect you with an authorized installer nearby. You can find the form here.

Unplugged Performance processes orders quickly, typically within 1–2 business days after placement. For U.S. customers, orders under $50 usually ship via FedEx SmartPost with an estimated delivery time of 2–7 business days. Larger items like body kits or bumpers may ship via freight carriers with curbside delivery; customers will be contacted to schedule a delivery window. International shipping is available to most countries, with shipping costs calculated at checkout. Delivery times abroad vary, generally ranging from 5 to 16 business days depending on destination. Import duties or taxes are the customer’s responsibility. To ensure a smooth shipping experience, provide accurate contact information during checkout. For specific questions or shipping quotes, Unplugged Performance’s support team is available to assist.