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Wimmer Tunes the KTM X-Bow Lineup

Would you pay at least €110,000 for a track-oriented machine that normally goes for €80,000 or so? It seems like some enthusiasts of the Austrian contraption might spend that extra considering a tuner did enhance KTM’s entire X-Bow lineup.
Wimmer KTM X-Bow 18 photos
Photo: Wimmer
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We’re referring to everything from the GT to the R and carbon fiber crazy RR, with the first costing €130,000 after German tuner Wimmer RST works its magic on it. Let’s start with the wildest tune job of this extreme KTM crossbow trio, shall we?

Wimmer’s X-Bow GT was given a lot of new go-faster bits and bobs, including a modified turbocharger for the 2-liter Audi petrol-fed powerplant, better exhaust, an optimized high compression pump and such. The ginormous rear wing with adjustable flaps is not that impressive when compared to the output hike - 485 HP and 520 Nm (383 lb-ft).

Pretty impressive if you consider that the standard KTM X-Bow GT produces 285 HP and 420 Nm (309 lb-ft). The Wimmer X-Bow R, however, isn’t as powerful as the GT. It’s 30 HP down at 455 HP and loses 20 Nm (14 lb-ft) of torque as well, but hey, it’s lighter than the GT so what you lose in terms of oomph you win on the scale. Finally, the track-only Wimmer X-Bow RR is the least powerful of the tuner’s trio.

With “just” 370 horsepower, that represents only a 10 HP bump over the RR’s standard tune, but this Austrian piece of kit is far better handling-wise as opposed to its R and GT siblings. This is the type of car that will blow your mind if you have the balls to thrash l it on a demanding circuit such as Laguna Seca.

If we’re to pick our favorite KTM X-Bow RR stat, that would definitely be the lateral acceleration this thing is capable of - a mind-boggling 2 Gs on semi-slick rubber is no small feat all things considered.
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About the author: Mircea Panait
Mircea Panait profile photo

After a 1:43 scale model of a Ferrari 250 GTO sparked Mircea's interest for cars when he was a kid, an early internship at Top Gear sealed his career path. He's most interested in muscle cars and American trucks, but he takes a passing interest in quirky kei cars as well.
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