The K-Brace® by BAF Motorsport
Engineered to cut rear body flex by up to 18% — proven with the University of Huddersfield. 150+ vehicles covered, handcrafted in the UK.
proven design
We didn't just claim the K-Brace® works — we proved it. BAF Motorsport partnered with the University of Huddersfield and put the K-Brace® through six months of independent testing. The result: an up to 18% reduction in body displacement under load. In plain terms — less unwanted chassis movement, sharper steering response, more grip, and a more planted feel on both road and track.
The job of bracing is to increase torsional rigidity — how much the chassis resists twisting under load. The stiffer the structure, the more the suspension can do its job, because it's controlling the car's movement instead of fighting a flexing body. More rigidity means the suspension controls more of the vehicle's kinematics — and that translates directly into sharper steering response, more grip, and clearer feedback through the car. You feel the road, not the chassis moving underneath you.
rgny5th
Most strut braces are a single bar between two towers. The K-Brace® is built differently. Using four fixing points and a triangulated K-shaped design, it spreads load across the chassis instead of relying on one straight line of support. It also works with your car, not just on top of it — the K-Brace® ties into the factory strengthening supports manufacturers already build into the strut mountings, combining them with its own geometry for a level of rigidity a single bar simply can't match. The result is the definitive rear strut brace on the market — engineered, tested, and proven, not just bolted on.
Most chassis upgrades cost you something in daily usability. The K-Brace® doesn't. It's mounted in the optimum position for your specific vehicle, so you get the rigidity gains with no compromise to boot space and no loss of folding rear seats. Simple to install, discreet once fitted — motorsport-grade stiffness in a car that's still completely usable every day.
For those who want the ultimate version, the Titanium K-Brace® takes everything that makes the original great and makes it lighter and stronger. Same proven K-shaped, four-point design — now handcrafted in Grade 2 titanium for the lowest possible weight without giving up an ounce of rigidity. The definitive rear strut brace, in its definitive form.
Every K-Brace® is finished in industrial-standard powder coating that's built to last. Choose from six base colours, or go further with a custom colour for a finish that's unique to your build. Function first — but no reason it can't look the part under the boot floor.
A more connected rear-end feel for fast road and performance driving.
Designed with real cars and day-to-day practicality in mind.
Use BAF support to make sure the correct generation and body style is selected.
Featured picks
Start with key K-Brace® designs, then continue into the full collection below.
K-Brace®
K-Brace® - Cupra Formentor VZ Rear Strut Brace
From £174.99
K-Brace®
K-Brace® - Volkswagen Passat B5.5 (Estate) Rear Strut Brace
From £174.99
K-Brace®
K-Brace® - Honda Civic EK Rear Strut Brace
From £174.99
K-Brace®
K-Brace® - Ford Kuga MK1
From £174.99
K-Brace®
K-Brace® - Audi S4 B8/8.5
From £174.99
K-Brace®
K-Brace® - Cupra Leon MK4.5
From £174.99
Fitment confidence
Vehicle generation and mounting points matter. If you are unsure which K-Brace® fits, send BAF your car details before ordering.
Message BAF for fitment helpModel, year, body shape and generation help confirm the correct K-Brace®.
Select the right K-Brace® option, finish and any available configuration.
Buy online or message BAF to plan fitting support.
Questions answered
Quick answers for buyers before they choose a product or message for fitment advice.
The K-Brace® is designed to improve chassis confidence and rear-end feel by adding support across the rear of the vehicle.
Fitment depends on generation, body style and mounting points. Send BAF your vehicle details if you are unsure.
BAF can help with product choice and fitting routes. Message the team if you want support before ordering.
Many K-Brace® products include material or finish options. Check the product page or message BAF for help.
Ready to choose?
Shop the range
Use the quick routes for popular vehicle makes, browse the full K-Brace® collection, or message BAF if you need fitment confirmed.
Send BAF your vehicle details before ordering and the team can help confirm the right K-Brace® option.
Message BAFBrowse the range with BAF product knowledge, vehicle checks and support behind the purchase.
Shop full rangeBAF can help with product choice, fitment notes and installation planning for performance-car owners.
Contact BAF
