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Purchase Rear Reinforcement Strut Upgrade
  • Rear Reinforcement Strut Upgrade SKU: PK981BRACE

  • $240.00

  •  


Product Details

Genuine Porsche Rear Reinforcement Strut Upgrade — 981 Boxster & Cayman (2013–2016)

A popular and well-regarded enthusiast upgrade for the 981 platform — and one that Porsche later adopted as standard equipment on the next generation. This additional reinforcement strut for the rear anti-roll bar bolts directly to existing mounting points, adding rigidity to the rear wheel carriers without any modification to the car. A clean, factory-parts solution for drivers looking to sharpen the 981's already exceptional handling balance.

These are Genuine Porsche parts, sourced through an authorized Porsche dealer.

Please Note This is a popular enthusiast upgrade — not a factory-recommended modification for these model years. Professional installation recommended.

File Photo Notice The photo shown is a representative file image — actual part appearance may vary.

Compatibility

  • 2013–2016 Porsche Boxster, Boxster S & Boxster GTS (981 generation)
  • 2014–2016 Porsche Cayman, Cayman S & Cayman GTS (981 generation)

Why Genuine Porsche? Every component in this upgrade is a Genuine Porsche part — the same unit Porsche later made standard equipment on successor models, sourced through the official Porsche parts supply chain. Not an aftermarket approximation. The real thing.

Genuine Porsche. Not Aftermarket. Not a Knockoff. Accept No Substitutes.

Warning: Cancer and Reproductive Harm - www.p65warnings.ca.gov
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5/5 Stars out of 8 Reviews
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Great Upgrade! ( Verified Buyer )
5 out of 5 stars.
Roman (Louisiana) | April 21st, 2025
You can't go wrong with this as a low cost suspension upgrade. I installed it in ~10 minutes. I didn't even need to jack up the car. I just drove the back tires up onto some wood ramps. I have a base, so my pan didn't have the holes for the additional bolts. I still noticed a difference in cornering without installing them though. I will drill the holes in the pan the next time I have the car up on jack stands for something.
Well worth the money, fantastic hadling ( Verified Buyer )
5 out of 5 stars.
Roberto (San Diego (CA)) | August 14th, 2022
I had a mechanic install this on my 981 Cayman S (drilling was necessary but nothing out of the ordinary). First time I took the car to my favorite twisted road, I was literally impressed. The rear feels much more connected to the ground especially in hard cornering even win Sport mode (Sport plus engages the dynamic engine mounts to increase rear rigidity in cars with Sport Chrono pkg) . The ride comfort is the same . I'm so happy to be able to "feel" what the rear is going to do. Not surprised that this is stock in 981 GT4 and 781 series. Fantastic value for the money, strongly recommend if you enjoy spirited driving on your Cayman (and you should !). Also , didn't seem to have degraded the turn in capability so it's a real winner mod.
Piece of Cake Add On
5 out of 5 stars.
Greg Z (Sacramento CA) | May 13th, 2021
New to me 2013 Boxster S. Installation was a piece of cake. I think it took me more time to jack up the car than it did to install the brace. Additional brackets and bolts included. Went right in. As noted in other reviews, the brace has two holes in the tail for additional bolts. It only took a few minutes to drill the holes and drop in bolts. Easy DIY suspension upgrade.
Rear strut bar
5 out of 5 stars.
Jeffy (Livermore, Ca) | July 5th, 2020
2016 Cayman GTS, The hardware they sold me was not needed for my application, I reused my existing hardware, so that was a wasted 20 bucks. They didn’t send the 2 bolts that fastened it to my pan so I had to go buy some. It does keep the rear very flat during hard cornering.
Easy must do upgrade for 981
5 out of 5 stars.
Anonyomous parrot (USA) | May 26th, 2020
Kit came with new bolts and brackets which were needed for my 2015 Boxster base w/ PDK. Original bolts and brackets don't fit with the strut reinforcement bar so must use the provided one (unless you have S or GTS). Installation was dead easy. Undo 4 bolts, change 2 brackets, place strut reinforcement bar, put new bolts in, torque them to 17lb, done. Did the entire job from start to finish in 25 minutes. As for ride quality, there's no difference in daily driving although I do feel the rear to be more solid. Where it really makes difference is when I do hard turns - back end of the car feels way more solid than before and less chassis flex. Steering under hard turn is more predictable now thanks to the bar. Little less body roll at hard turns as well. Highly recommend the upgrade.
IF YOU CAN CHANGE YOUR OIL, YOU CAN DO THIS.
5 out of 5 stars.
Al (Hilo, Hawaii) | March 23rd, 2019
I don’t know why Suncoast recommends professional installation. The strut was a simple and easy bolt on project for my 981 GTS. Everything fits perfectly. I took on the additional, bigger task of removing the pan, drilling holes in the pan and bolting the pan to the strut. No big deal.
Good And Quick Add On
5 out of 5 stars.
Anonymous (Florida) | December 30th, 2018
Install was easy.....bolts right on in 15 minutes. Torque bolts to 17ft. Lbs. My 2016 981S had the holes and nuts already welded in pan so used two M8 x 1 inch metric bolts with washers to bolt the strut down to pan. Kit comes with extra clamps and bolts, but I reused my old ones. These struts are factory OEM on 718’s.
Kit works on Cayman S
5 out of 5 stars.
Voyager6 (OH) | July 28th, 2017
Received the kit on Tuesday and installed it immediately. Kit fit well. However the brace has an L profile and the tail of the L rests on the pan. The brace has two holes in the tail for what appears to be additional bolts. The pan would need to be drilled to match the brace holtes and bolts added. This would prevent the stamped sheet metal brace from flexing under load. A friend gave me a photo of the brace on a 718 and it had the extra bolts and nuts from the factory. It shouldn't be hard to find aftermarket parts for this, but the kit should provide them.
 
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Porsche Parts Warranty Information — Suncoast Porsche

Understanding your warranty coverage is important. Below is a complete overview of warranty terms for Genuine Porsche OEM parts, aftermarket parts, and closeout items purchased from Suncoast Porsche and SuncoastParts.com.

Warranty Coverage by Product Type

Genuine Porsche OEM Parts — 2-Year Warranty

All Genuine Porsche OEM parts purchased from Suncoast Porsche or SuncoastParts.com come with a 2-year, unlimited mileage, parts-only warranty beginning on the date of purchase.

If your parts are installed at an authorized Porsche Service Center, both parts and labor warranty coverage may apply if the part is deemed defective within the 2-year warranty period. Coverage varies by location — please check with your local Porsche dealer prior to installation to confirm their specific warranty participation, as each Porsche Center is independently owned and operated.

Important warranty notes for online purchases:

  • Labor, diagnostic, and installation fees are not covered when parts are purchased online from SuncoastParts.com or Suncoast Porsche, unless the parts are installed by an authorized Porsche Service Center
  • Warranty claims must be processed in person at an authorized Porsche Service Center
  • Warranty service is honored at any authorized Porsche dealer in the United States, however some dealers may decline warranty claims for parts purchased online or from another dealership — always verify with your local dealer before installation
  • If a warranty claim is approved and the part was not installed by a Porsche Service Center, installation of the replacement part remains the customer's responsibility
  • Suncoast Porsche and SuncoastParts.com are not liable for any diagnostic, labor, or installation fees charged by another Porsche Service Center

Aftermarket & Performance Parts

Warranty coverage for aftermarket and performance parts varies by manufacturer. Most carry a 1-year limited warranty. Contact us for specific warranty details on any aftermarket product. Please note that diagnostic time and labor costs for warranty replacements are not covered.

Take-Off & Closeout Parts

All take-off and closeout parts are sold as-is with no warranty and are not eligible for return. Pricing on these items reflects their as-is condition.

What This Warranty Does Not Cover

The following situations and conditions are explicitly excluded from warranty coverage:

  • Improper Installation or Misuse — Damage resulting from incorrect installation, negligence, unauthorized alteration, or accident. This includes any use in racing, competition, or motorsport applications
  • Lack of Proper Maintenance — Damage caused by failure to follow the vehicle's recommended Maintenance Schedule, or failure to use the correct fluids, fuel, oil, or lubricants as specified in the Owner's Manual. Proof of proper maintenance is the owner's responsibility — retain all service receipts in case questions arise
  • Consequential or Economic Losses — Towing fees, rental vehicles, loss of use, loss of time, inconvenience, or any other indirect economic losses
  • Vehicles Outside the USA & Canada — Parts installed on vehicles registered or primarily operated outside of the United States or Canada are not covered under this warranty

How to Obtain Warranty Service

Installed by an Authorized Porsche Dealer

If your parts were originally installed by an authorized Porsche dealer, warranty repairs may be performed by that same dealer or any other authorized Porsche Service Center in the United States. Please allow a reasonable timeframe for repairs after delivering your vehicle to the dealership.

Installed by an Independent Repair Shop

Please be aware: All warranty claims must be inspected, performed, and documented by factory-trained Porsche technicians at an authorized Porsche dealership. Work performed at an independent repair shop does not qualify for warranty consideration. If warranty coverage is a priority, we strongly recommend having your parts installed at an authorized Porsche Service Center.

Documentation Requirements for Warranty Claims

To process a warranty claim, the servicing Porsche dealer will require:

  • Your original sales receipt or order confirmation from SuncoastParts.com or Suncoast Porsche
  • A completed warranty certificate
  • Proof of proper vehicle maintenance history (if applicable)

Suncoast Porsche retains sales records on file for two years. If you need a copy of your receipt, contact us and we will provide it promptly.

Additional Warranty Terms & Legal Disclaimers

This warranty provides you with specific legal rights. You may also have additional rights that vary by state.

Porsche does not authorize any individual or organization to create additional obligations or liabilities beyond those stated in this warranty. Any implied warranty of merchantability or fitness for a particular purpose is limited in duration to the term of this written warranty. The exclusive remedy under this warranty is the repair or replacement of the defective part.

Suncoast Porsche and SuncoastParts.com shall not be liable for any incidental or consequential damages arising from a breach of this written warranty or any implied warranty.

Some states do not permit limitations on implied warranty duration or the exclusion of incidental or consequential damages — the above limitations may not apply in your state. Additionally, installation of certain parts or accessories may affect your Porsche New Vehicle Warranty. Please consult your authorized Porsche dealer for full terms, or contact us with any questions.

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