About Us

whifbitzsupraenginebay2095841Whifbitz are the leading Japanese car tuner in the South Wales areas, offering a professional bespoke service.

We have been modifying all makes and models of Japanese vehicles since the year 2000 and have huge experience in the Toyota Supra JZA80. We know the Supra inside out and everything we have learned over the years is passed on to the customer. Nobody else in Europe has done what we have with the Toyota Supra, competing successfully in the Time Attack Series winning the RWD class and racing in the Eurosaloon Series.

Not only that but we have a large range of our own products for the Supra, produced over over many years of research and development. Products included turbo kits, brakes, bodykits, camshafts, engine pulleys, exhaust systems, silicon hoses, radiators, intercoolers, the list is endless, please check out online shop where they are all listed out for you.

pits1We have competed in the ever growing Time Attack Series for 5 years, with out best results being 1st and 3rd positions secured in 2009 and 2nd and 3rd in 2010. Competing in a race series like Time Attack for such a long period of time with great success, we gained a huge amount of experience in building and preparing race cars to a very high standard. This is is reflected in the quality of work that goes into building and modifying customers road or track car. We can advise you on the best quality components to install on your car, we know which products work and don’t work, the products you do and don’t need. You can take a look at some of the customer car builds we have done here along with our own cars here.


More recently we have been working on the Nissan R35 GTR and now have our own demo car producing a nice healthy 1000bhp. The car was bought with a blown engine so has been fully rebuilt and upgraded by ourselves using top quality components from around the world. We have also been busy developing our own range of performance parts for the R35 GTR which have all been fully tested out on our own car. Whifbitz R35 GTR turbo kit, intercooler kit, air filter kits, exhaust systems including y-pipes and downpipes.

Unlike a lot of our competitors our own cars are tested to the limits and beyond on the race track, developing new parts and experience which filters down to the end user, our customers.

We have full workshop facilities which caters for more or less any task. Some of the following is listed below, if you cant see what is required please do not hesitate to contact us

Modifications we can provide for you:


Fast road upgrades including power increases, suspension, brakes, wheels/tyres, etc.

Track day car preparation including brakes, suspension, weight saving, roll cages, power upgrades.

Race car & Drift car preparation to the highest standards available, please see our own cars under the Whifbitz cars section so you can get an idea on what we can do for you.

ECU installations using Syvecs AEM, Apexi, Link, Ecutec and others if required.

S6gp21Suspension upgrades including coil over adjustable shocks, poly bush kits, anti roll bars, adjustable upper and lower arms, etc

Brake upgrades including 6/4 pot conversions, upgraded discs, fast road/race pads, braided brake lines, race fluid.

Boost upgrades using Greddy, Blitz, HKS, Apexi, AEM electronic boost controllers.

borgwarnerBolt on turbo conversions and custom turbo kits available on request.

Fuel system upgrades including fuel pumps, fuel injectors, fuel rails, adjustable fuel regulators, braided fuel lines, etc

Cylinder head modifications including flow bench porting, larger uprated valves, uprated springs, port matching, etc

Clutch upgrades including single plate, twin FUELAB-Pumpsplate, triple plate and quad plate clutches, lightened flywheels, etc

Gearbox upgrades including gearkits, sequential gearboxes

Differential upgrades including 1.5 and 2 way LSD depending on useage

Full engine building service, from a standard rebuild to a full on race engine, all dependant on your  requirements

General Servicing:

We don’t just offer modifications, we also service and osgikenmaintain your vehicle for you. We only use top quality products, the best available on the market:

  • Engine oil using Gulf Racing oil and top quality oil filter such as K&N, Nismo and TRD, brand dependant on vehicle
  • Gulf Racing diff and gearbox oil
  • NGK iridium and NGK race spark plugs
  • Cambelt changes using OE products or aftermarket, depending on modifications & vehicle
  • Brake fluid using Gulf Racing products
  • Fuel filter using OE products
  • Air filter, we generally fit aftermarket air filters for the best filtration and power
  • General check over reporting on any further work required

Parts Supply

We are main distributors for HKS, Blitz, BC Racing, Tein, Porterfield Brakes, Spec Clutch, Tiapracingbigbrakekit Exhausts, Greddy, Advan Racing, Rota wheels and many more.

We can also order more or less any part from all the major brands of tuning parts available in the aftermarket world. HKS, Blitz, Greddy, Trust, Apexi, Tein, RPS, TRD, Nismo, Volk Racing, Advan, Aeromotive, Porterfield brakes, Buddy Club, Uras, Tomei, OS Giken, the list goes on and on! If you need a part and cant see it on our website, it doesn’t mean we don’t do it, so please just ask

We also have our own range of products available for certain vehicles, mainly for the Toyota Supra and more recently the Nissan R35 GTR . Produced through many years of research and development our products are made to the highest ofasnuinjectors standards, fully tested on the road and track.

If you cant find what your looking for within the website please do not hesitate to contact us, we can source more or less any part from Japan for any car.

OEM parts:

We also stock genuine parts imported direct from Japan at a reduced rate compared to the UK prices. We can also source parts which are unavailable in the UK, please contact us with your requirements.