SprogTech ST-X 'Cup Kit' - Motorsport Enclosed Air Filter Kit

SprogTech ST-X 'Cup Kit', our enclosed air filter airbox intake kit for motorsport use.
 
YOU CAN NOW PRE-ORDER SPROGTECH PRODUCTS THAT ARE OUT OF STOCK. PLEASE USE OUR SPROGTECH PRE-ORDER FORM >>> CLICK HERE <<<
 
Notes
 
Please allow up to 1-4 weeks for dispatch. We don’t always have our products on the shelves and they are sometimes made to order. Thank you for understanding.
Images are of the ST-X Carbon airbox with 'speed holes' which are now discontinued and are no longer available.
 
Key Features 
 
Our ultimate universal enclosed airbox kit, designed to provide unrivalled performance on the racetrack
100% Designed and manufactured in-house by us, in the UK
Choice of ST-X or ST-X Carbon airboxes
Integral Ramair foam air filter with 100mm neck, which is easily replaceable and very cost-effective compared to other airboxes on the market
Completely customisable - Inlet and outlet sizes can be specced up to 100mm per side, making this airbox versatile for any power application
Optional 'speed holes' on the inlet, further enhancing intake noise
Motorsport grade heat-resistant ducting, aluminium bell mouth, silicone coupler and stainless hardware included, making these a complete bolt-on kit for your car
Unique build number and card with every ST-X product
 
Kit Includes
 
1x ST-X or ST-X Carbon enclosed airbox (choice of inlet and outlet sizes)
1x Motorsport grade heat resistant ducting, 1 meter length (diameter will be matched to your airbox inlet size)
1x Aluminium bell mouth to suit ducting size
1x Silicone coupler or elbow (diameter will be matched to your airbox outlet size, reducer couplers are available upon request)
Stainless jubilee clips to suit
 
Dimensions and physical properties
 
Length - 300mm 
Width 152mm 
Inlet outer diameter - 76mm (default) to 100mm
Outlet outer diameter - 70mm (default) to 100mm
 
ST-X Carbon
 
Material composition - Carbon Fiber, PA12
Heat deflection temperature - 194 °C
Maximum sustained temperature exposure - 220 °C
Filter element - Foam (replaceable)
 
 
After months of development, testing, and investing in new manufacturing facilities, we are proud to finally release our production SprogTech ST-X enclosed airboxes and 'Cup Kits'. The ST-X & ST-X Carbon are our motorsport-grade enclosed airboxes utilising state-of-the-art manufacturing technologies and composite materials, as well as a fresh attitude on design, to offer race teams and individuals alike, the ultimate enclosed airbox for your race car.
 
Whether it's a 75hp fun cup or a 500+bhp Golf, we can build an ST-X to suit your build. As we design and manufacture everything in-house, we can build an Airbox to your specification, taking the inlet and outlet sizes up to 100mm, ensuring minimal restriction.
 
We have put a lot of work into the design of the ST-X. To us, an enclosed airbox is more than an air filter with an enclosure, it's an opportunity to move air through the filter as effectively as possible while causing minimal restriction and heat soak. The ST-X flips the traditional airbox design on its head (literally!). By turning the air filter around, it allows us to turn the tub and outlet of the airbox into a big velocity stack, giving the air the smoothest path achievable. 
 
The thing that really sets the ST-X Carbon apart from the rest of our SprgTech range, is the new addition of a Carbon Fibre composite material. We always knew the ultimate ST-X deserved the best material available, but we didn't want to follow the tradition of carbon fibre moulds, it's been done to death, and we can go one step better! The carbon fiber-infused nylon is far more resistant to heat than our ABS Airboxes, deflecting temperatures up to 194 °C, and offering increased tensile and impact strength. It is the perfect composition for the toughest of environments, where durability is an important criteria.
 
Are you an individual in motorsport, an avid track go-er, or a race team? Do you think our products would be a great business opportunity for your company? The SprogTech ST-X Airboxes and 'Cup Kits' can be purchased through sponsorships and bulk orders to obtain brilliant levels of discount. If you are interested in finding out more, please contact us using the contact form or email below.
 
If you have any further questions regarding this product, feel free to contact us on one of our linked social medias, or alternatively email us at: info@sprogleymotorsport.co.uk.