The need for speed bug has hit Wimmer RS that has just presented three new performance tunes for the KTM X-Bow named GT, R and RR.

With the GT package, the KTM’s Audi-sourced 2.0-liter turbo’d four gains a whopping 200PS (197hp) over the stock unit boosting output from 285PS (281hp) and 420Nm to 485PS (478hp) and 520Nm, dropping the power-to-weight ratio to an amazing 1.75 kg per horsepower.

Wimmer says the GT can hit 100km/h (62mph) in well below 4.0 seconds and top out at 257km/h (160mph). There are also changes to the aerodynamics, ESP, ABS and suspension, with the price for this version set at €130,000 (~US$162,000).

Next is the €120,000 (~US$150,000) R tune that has 455PS (449hp) and 400Nm allowing for a top speed of 248km/h (154mph), with Wimmer offering a suspension tune and several other options such as a big rear wing.

The third member of Wimmer’s X-Bow family is the non-street legal €110,000 (~US$137,000) RR made exclusively for the track. It has 370PS (365hp) and a raft of other upgrades for the chassis and aerodynamics.

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