Sumiyaka are uniquely placed to offer services that many other companies cannot. Such as in house CAD design, fabrication, manufacturing and race/rally preparation services; for anything from a custom bolt to a complete intercooler setup, a full race build and beyond.
Our custom fabrication is well know and highly regarded in competition, show and road vehicles alike. Have a look through our gallery at just a small selection of the eye candy we have created.
Unlike most of our competitors our hybrid turbos are designed in house, and made with all new internal components to the highest possible standards. All housings are machined and ported to match the wheels being used, then balanced on a VSR machine to ensure long life and performance.
We offer tuning on most aftermarket electronic control systems, and installation and tuning of modern engine control systems to get the most from your vehicle.
Our reputation for engine building has been built up over many years of producing only the very highest quality work, whether you want a standard rebuild or a big power monster we can cater for your needs.
What we’re about
SUMIYAKA provide a comprehensive service to the Performance vehicle owner; from custom fabrication and full mechanical services, to body work repairs, performance tuning and competition preparation. All our work is carried out to the highest possible standards as you would expect from a company like SUMIYAKA.
The GTO/3000GT super cars like all Japanese super cars have a reputation for providing comfort, reliability and most of all stunning performance, but like any performance car they need a little TLC from time to time to keep them running at their best. SUMIYAKA are the experts at providing that care for your car. We love these cars and treat every car as though it was our own. We will not thrash or mistreat your car while it is in our care, and we always do our very best to exceed our customers expectations. We firmly believe in treating our customers and their cars they way we would want ourselves and our cars to be treated.
We do not baffle you with science or jargon; we are in the business of maintaining, modifying and tuning cars, we are not in the business of conning or ripping off our customers. Our reputation is hard won and we will not do anything to jeopardise it, so you will always get an honest and frank explanation of any work we recommend or carry out . But don’t take our word for it, we are more than happy to let our customers speak for us, which is why we have our testimonials page and our forum on GTO UK, so our customers can pass on their experiences of SUMIYAKA to others.
So whether you need a service to keep your pride and joy purring like a kitten; you fancy adding some performance upgrades to get more from your vehicle, or you want a fully race prepared monster to compete with; SUMIYAKA can provide exactly what you want, and guide you all the way through to ensure you get exactly what you want.
Mission Statement
The highest possible quality is the only standard we provide, and we are committed to giving you the best service possible.
A note from the directors
At SUMIYAKA our specialty is Prestige and Performance cars. We offer the very highest standard of service to any owner wanting only the very best for their car, without compromise. Our years of experience, combined with the specialist knowledge and skills our team have gained in Motorsport and the performance automotive industry, make SUMIYAKA perfectly suited to the challenges of working with modern high performance cars.
SUMIYAKA have a big advantage over most of our competitors, because our background is based in Motorsport engineering which goes far beyond the scope of normal mechanics. Our commitment to excellence also extends to our apprentices, who attend the National College for Motorsport at Silverstone, where they gain in depth knowledge of every aspect of performance engineering and vehicle maintenance, to a level well beyond normal mechanics training.
SUMIYAKA offer a very personal service to our customers, making every effort to surpass expectations in everything we do. Fortunately because of our knowledge, experience and facilities we are able to offer far more services than most of our competitors. Like most of our competitors SUMIYAKA can provide off the shelf options for your car, but unlike most of them we can also provide in house bespoke design and manufacture of custom parts. In fact anything from a bracket to a custom turbo and beyond, all made to suit your requirements.
Because of our love for the Mitsubishi GTO/3000GT, we are able to offer a very unique service to owners of these fantastic cars. This combined with our years of experience mantaining and modifying them; SUMIYAKA probably has more experience and knowledge of these cars than any other company in the UK, including Mitsubishi, we can provide everything you need to keep your GTO/3000GT on the road to the highest possible standard.
So whether you just need a service; have something special in mind, or you want full competition preparation, don’t take a chance with your car – let the experts at SUMIYAKA look after you.
The Directors
SUMIYAKA
