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Rear Under Spoiler and Diffuser System for 2012-2016.5 Tesla Model S
Rear Under Spoiler and Diffuser System for 2012-2016.5 Tesla Model S
$1,995.00

Rear Under Spoiler and Diffuser System for 2012-2016.5 Tesla Model S

$1,995.00

-

This product has been discontinued. Please refer to the other 2012-2016.5 Tesla Model S Exterior upgrades here!

The performance and aerodynamics of a car are often best visible at the rear and this Rear Under Spoiler/Diffuser system lets people know that your Model S is a serious performance car.

The design is a mix of functional aggressiveness and it takes Tesla’s factory rear diffuser design to a new level. The subtle elongation of the rear diffuser enhances the air diffuser effect Tesla has already designed into the car. All five of Tesla’s functional underbody diffuser fins are kept intact and well integrated into the new design.

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Include Diffuser Fins?

UP-MS-105-3.1

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SKU: UP-MS-105-1.1
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Product Details Product Details

The performance and aerodynamics of a car are often best visible at the rear and this Rear Under Spoiler/Diffuser system lets people know that your Model S is a serious performance car.

The design is a mix of functional aggressiveness and it takes Tesla’s factory rear diffuser design to a new level. The subtle elongation of the rear diffuser enhances the air diffuser effect Tesla has already designed into the car. All five of Tesla’s functional underbody diffuser fins are kept intact and well integrated into the new design.

Available without the fin panel for a subtler look, or choose the fin panel option for a more aggressive aesthetic.

This part is offered in the following finishes: unpainted, premium factory color paint, or in beautiful carbon fiber. The Unplugged Performance Rear Under Spoiler and Diffuser System is designed and produced to the highest quality levels in Hawthorne, California.

Starting September 2015: All rear under spoiler/diffuser systems in either unpainted or painted variations are produced in a Tesla factory style of impact resistant urethane. This production method allows significant durability as the material rebounds to the factory shape after experiencing an impact. The carbon fiber option remains as carbon fiber for those looking for supercar grade lightweight construction.

Compatible with all Model S variants produced before Spring 2016.

Tesla’s production of the Model S utilizes many ongoing minor adjustments which occur often without public announcement and without following a traditional model year cycle. As a result of our experience, we produce multiple variations of our parts to ensure a best fitment match Tesla’s many publically undocumented variations. For our research and development to benefit your order please provide us with the production month/year, trim specs, color, and VIN when you submit your order.

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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.

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      Sof October 19, 2022
      Received my suspension for my Y 2022 long range what a difference. Set it for 8 on the adjustment rides totally different what a great job took it to a friend of mine Frank Reyes to install Desert car medics said the product was very well made installed it in about 5 and 1/2 hours. Driving it for a...
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      smgdcw April 17, 2023
      I placed an order for the Satin Asteroid Graphite wheels with Michelin Pilot Sport Tires after I had the Luxury Coilovers installed on my Model Y. Within 2 weeks I was back in Hawthorne to have them mounted, balanced and aligned. The style contrasts perfectly with the Satin PPF wrap on my car. ...
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      f1dinesh August 15, 2023
      These are a great set of wheels. I purchased them to replace my OEM 2024 M3P wheels. I went with the 19x9.5 in satin black. The wheels are very lightweight and durable. I wrapped them in Michelin Pilot Sport 4S summer tires. The wheels are great on the street for daily use and I have used them at...
      victor-barbarino May 30, 2025
      This definitely helps cool down my drive unit quicker. I'm able to run a hot lap at the track, then a single cooldown lap to bring the drivetrain temperature back into the green. It was awesome seeing it cool down within a lap at Buttonwillow.
      Sof October 18, 2022
      Having purchased a UP Sport coilover kit for my Model 3, I purchased this kit for my Model Y as well along with Camber & Toe arms. This kit makes an amazing difference to the ride quality and handling on my Model Y. The car handled surprisingly well on the track with minimal rollover thanks to the...
      f1dinesh August 08, 2023
      I bought my spoiler as soon as my new Model 3 2021was delivered to Vancouver in March 2021. A friend of mine had suggested getting this one specifically and when we added it to my new white Tesla with its dark glass roof-and my extra tinted windows this Black Carbon spoiler added a perfect finishing...
      Brian M. September 29, 2022
      Phenomenal brake pads. As my daily grocery getter and occasional spirited driving, yes these may be overkill for some but with how fast the M3P is you can't go wrong with better stopping power. I've had these pads since April and would highly recommend to anyone that does occasional track days...
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      Makes the beastly Plaid more responsive and stable.
      raviprabhakar October 03, 2022
      Best modification I ever did to the Tesla combined it with H&R lowering springs pears very well to fix the suspension quality that is given in stock. Easy Job doesn’t take more than 2 hours.
      Pat M. October 09, 2025
      Very nice shirt that allows me to represent the best in Tesla aftermarket. Pleasure doing business and I look forward to working with UP forever.
      Christian N. January 01, 2026
      Really like these rims worth the purchase.
      Alonzo M. September 25, 2025
      Bought it years ago and it’s still in perfect condition. Super high quality carbon, no yellowing and still sticks on hard to the car! Looks stunning as well.
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      Unplugged Performance is the world leader in premium performance upgrades for Tesla vehicles. With our USA-made line of stylish and high-performance parts, our sole focus is on holistic development and improvement of all Tesla cars.
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