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Tesla Model X / Model X Plaid (2021+) Billet Rear Trailing Arm Set (Lower Aft Link)
$558.75
These Unplugged Performance Billet Rear Trailing Arm Set (Lower Aft Link) for Tesla Model X Plaid and 2021+ Model X vehicles replaces the standard Lower Fore Link with a stronger and lighter billet aluminum version with high performance sealed spherical bushings. The upgraded bushings provide both silent operation and improved handling feel and durability. The new 2021+ Model S features an all-new 5 link rear suspension that we have precisely re-engineered for performance driving.
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Product Details
Tesla Model X / Model X Plaid (2021+) Billet Rear Trailing Arm Set (Lower Aft Link)
Our advanced Model X Plaid suspension development and racing kicked off in June 2021 with our race car Dark Helmet as we set out to develop the ultimate performance handling Model S. The results have followed as we brought home to the Tesla community a Pikes Peak class victory and multiple production based EV lap records with our development race car. In the months that followed we’ve gone into production with a premium range of suspension components that can be purchased individually or as a comprehensive lineup depending on the goals of each driver. All of our suspension development begins with precision 3D scanning of the car’s suspension to develop a working digital model, then followed by real-world racing and street use internally on our company vehicles before roll out to the public. Our history, race results and industry-leading warranty provide peace of mind that these are the best money can buy.
Billet Rear Trailing Arm Set (Lower Aft Link)
These Unplugged Performance Billet Rear Trailing Arm Set (Lower Aft Link) for Tesla Model X Plaid and LR 2021+ vehicles replaces the standard Lower Fore Link with a stronger and lighter billet aluminum version with high performance sealed spherical bushings. The upgraded bushings provide both silent operation and improved handling feel and durability. The new 2021+ Model X features an all-new 5 link rear suspension that we have precisely re-engineered for performance driving.
- CNC-milled 6061 aluminum for maximum strength while saving weight
- FEA-simulation optimized to ensure superior static, dynamic, and fatigue strength
- Sealed spherical bushings for unmatched precision and durability with silent operation
- Replaces Tesla part number RR LOWER AFT LINK, P2 1420452-99-C
- We recommend pairing this item with our full suite of rear suspension products for your vehicle:
- Billet Adjustable Rear Camber Arm Set (Fits Model S/X 2021+)
Billet Adjustable Rear Toe Arm Set (Fits Model S/X 2021+)
Billet Rear Traction Arm Set – Upper Fore Link (Fits Model S/X 2021+)
Billet Rear Lower Arm Set – Lower Fore Link (Fits Model S/X 2021+)
Rear Sway Bar – 3 Way Adjustable
- Billet Adjustable Rear Camber Arm Set (Fits Model S/X 2021+)
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Should I upgrade just this arm or do the full rear suspension?
You can start with the trailing arm on its own, but we recommend pairing it with the full rear suite for the best result. That includes the Billet Rear Traction Arm Set (Upper Fore Link), the Billet Rear Lower Arm Set (Lower Fore Link), and the adjustable camber and toe arms. Doing the set gives a consistent, fully re-engineered rear end.
Do these fit both the Model X and Model X Plaid from 2021 on?
Yes. They are made for the 2021+ Model X and Model X Plaid, which use an all-new five-link rear suspension that we re-engineered for performance driving. The set replaces Tesla part number 1420452-99-C, the rear lower aft link. Confirm your car is a 2021 or newer Model X before ordering.
Will spherical bushings make my Model X noisy or harsh on the street?
No. These use sealed spherical bushings specifically chosen for silent operation alongside the precision gain, so you get tighter response without the rattle or harshness some solid bushings bring. The sealing also protects them for daily-driven durability. It is a street-friendly way to firm up the rear.
Were these developed on a real race car?
Yes. Our Model X Plaid suspension program began in June 2021 with our race car Dark Helmet, and it brought home a Pikes Peak class victory and multiple production-based EV lap records. Development starts with precision 3D scanning of the suspension to build a digital model, then real racing and street use on our own cars before public release.
Can I install these myself, or is a shop better?
Rear suspension link work is within reach for an experienced DIYer with a lift and the right tools, but the bushings come already mounted to simplify the job. If you would rather have it done, our Hawthorne team or an authorized installer can fit them. An alignment afterward is a good idea any time you touch rear links.
