Hundreds Of Products Ready Today. Dispatch/Collection Customer MNR Vortx with Tillett B6 Carbon Bucket Seats
We recently supplied a pair of Tillett B6 Carbon bucket seats to a customer building a lightweight MNR Vortx kit car. Seeing these premium seats heading out for such a focused performance build was a real highlight. The MNR Vortx is a lightweight, purpose-built machine, and the carbon version of the Tillett B6 fits the car’s design philosophy perfectly.
The customer came to us looking for a seat solution that would suit the compact size of the Vortx’s interior, offer maximum performance on track, and minimise unnecessary weight. After discussing various options, the Tillett B6 Carbon stood out as the perfect match. The seat’s minimalist design and ultra-light carbon fibre construction ticked every box for their high-performance goals. It was a case of form and function working together seamlessly.
The result is a cockpit setup that not only looks purpose-built but also performs at the highest level. The installation required no interior modifications, saving the customer time and ensuring a clean, factory-like fitment. This kind of success story is exactly what we aim for at GSM Performance — matching the right product with the right build to elevate the entire driving experience.
The MNR Vortx and Small Cockpit Fitment
The MNR Vortx is a purpose-built kit car designed for track use and performance driving. With its compact chassis and narrow cockpit, there’s very little room to play with when it comes to seating. Standard-size reclining or bucket seats usually won’t fit without serious modifications to the interior. That’s why the Tillett B6 range works so well in this type of vehicle.
The B6 is a slimline, bare-shell bucket seat that has been developed specifically for cars with restricted space. Its narrow profile and lightweight shell mean it can be installed directly into the MNR Vortx without the need to modify the transmission tunnel, side panels, or bulkhead. It’s a true bolt-in option that fits as if it was designed for the chassis.
Why Choose the Carbon B6 Over the Fibreglass Version?
The Tillett B6 seat range is available in both fibreglass and carbon fibre constructions. While the fibreglass version already offers excellent strength-to-weight performance, the carbon B6 goes a step further. It offers maximum weight saving and additional shell rigidity, which translates into sharper response and a better feel for the chassis.
For a car like the MNR Vortx, where every kilogram matters, the carbon fibre version is ideal. It reduces weight even further over the front axle and keeps the centre of gravity low. Compared to the fibreglass B6, the carbon version also offers more visible carbon weave and a slightly cleaner finish, making it popular with those wanting the ultimate track-focused look.
A Closer Look at the Tillett B6 Carbon Seat
The Tillett B6 Carbon is a premium, FIA-homologated bucket seat built with performance and weight reduction in mind. It features a full carbon fibre construction with a bare shell design that keeps the weight to an absolute minimum. Despite this, comfort is not compromised, thanks to the wide choice of modular cushion kits.
You can choose optional headrest and backrest cushions to provide extra support during longer sessions or touring events. The B6 also includes a rolled-edge option. This feature eliminates sharp or unfinished shell edges, creating a cleaner appearance and reducing potential wear on harnesses or race suits.
Key features include:
- Ultra-lightweight carbon fibre shell
- Slim profile for tight cockpit fitment
- Side-mount compatible design
- Modular padding and headrest cushion options
- Available with rolled-edge upgrade for comfort and finish
- Not FIA homologated for motorsport use
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From £1,014.30 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
Tillett B6 Dimensions – Fit for Driver and Car
When fitting a fixed-back bucket seat into a compact cockpit like the MNR Vortx, size is everything. The Tillett B6 stands out because of its ultra-slim and efficient design that makes the most of the available space without sacrificing support or safety.
The key measurements for the B6 seat are as follows:
- External width at shoulder: 42.5 cm
- Internal width at hips: 34 cm
- External width across base: 35 cm
- Width at lower mounting point (with rolled edge): 40 cm or 44 cm without rolled edge
- Seat depth front to back: 100 cm
- Seat height: 81 cm
- Base length: 69.5 cm
- Mounting hole spacing (side mount version): 29 cm
- Mounting hole spacing (bottom mount): 29 cm width / 31.5 cm front to back
These dimensions show why the B6 is such a great fit for cars like the MNR Vortx. It fits within the tight cabin space and around the transmission tunnel without pressing against interior panels. The compact shoulder width and base dimensions also help avoid interference with gear levers or handbrakes. If your build has limited cockpit width or you’re struggling to find a bucket seat that clears your tunnel and door card, the B6 should be at the top of your list.
Explore the Full Tillett B6 Seat Range
The Tillett B6 lineup is one of the most versatile seat ranges we offer, with multiple variants tailored to different driver builds, car sizes, and performance goals. Whether you’re building a lightweight road car or preparing a vehicle for competition use, there’s likely a B6 model that will meet your needs.
At the core of the range is the standard B6 seat, available in lightweight fibreglass or ultra-lightweight carbon fibre constructions. These seats come in both standard and XL sizes, allowing drivers with different waist sizes to find a suitable fit. While the standard B6 fits most compact performance cars like the MNR Vortx, Caterham, and Lotus Elise, the XL version is best reserved for vehicles with wider cockpits and more cabin space. The XL shares the same overall shape but adds more width at the hips and shoulders, making it more comfortable for larger drivers.
If you’re looking for an FIA-approved version for competitive motorsport use, the B6 Screamer is the seat to consider. It retains the same slim footprint and ergonomic shell but includes the necessary FIA 8855-1999 homologation for use in sanctioned events. The Screamer is available in different materials including GRP (fibreglass), carbon/Kevlar mix, and full carbon fibre, offering flexibility depending on your weight-saving goals and budget. Like the standard B6, the Screamer can also be specified with modular padding and rolled edge cut-off options, which allow further tailoring to your cockpit constraints.
With all these options across the B6 and Screamer variants, this seat range continues to be one of the most adaptable and motorsport-ready bucket seat families available. Whether you’re targeting pure weight reduction, FIA approval, or simply the best fit for your narrow chassis, the Tillett B6 range has something to
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From £1,178.57 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £1,014.30 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £793.80 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £1,178.57 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £1,028.63 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £793.80 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £1,028.63 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £1,014.30 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
Installation and Mounting Considerations
Installing the Tillett B6 seat in a lightweight track-focused car like the MNR Vortx requires precise fitment, but thankfully, the B6’s design makes this straightforward. The seat is side-mounted, so you’ll need compatible side mounts to attach it securely to your floor or fitting hardware. Tillett produces their own range of high-quality aluminium side mounts, specifically shaped to work with the B6 shell and accommodate its angles and mounting points. These side mounts provide a secure and rigid connection to the car and are highly recommended for all B6 installations.
All the recommended Tillett fitting equipment mentioned in this blog works seamlessly with the entire Tillett B6 seat range, including the standard fibreglass version, the B6 Carbon, and the FIA-approved B6 Screamer. This ensures that whichever model you choose, you’ll have a clean, secure installation using parts developed by the same manufacturer to match the seat’s geometry. This compatibility keeps the fitting process simple and allows you to focus on fine-tuning driving position and comfort instead of fabricating custom mounts.
Summary: The Ideal Seat Upgrade for the MNR Vortx
For MNR Vortx owners looking for the best combination of weight saving, fitment, and driver support, the Tillett B6 carbon seat is a perfect match. Its slimline shell fits cleanly into the car without modifications, and the carbon fibre construction pushes performance to the limit. With a range of cushion and mounting options available, the B6 is both practical and performance-focused, making it one of the top seat upgrades for track-focused kit cars like the Vortx.