Lifting the vehicle's power-to-weight ratio to 380HP per tonne, the ABT-prepped X-BOW launches from standstill to 100km/h (62mph) in just 3.5 seconds or 0.4 seconds faster than the 240HP factory model.
"X-BOW's racecar-inspired chassis and sophisticated aerodynamic package have always given owners the ability to go head-to-head with some of the world's most exotic machinery," said Jeff Lau, KTM's X-BOW Manager for the UK.
"This power upgrade will ensure that X-BOW owners seeking an even more extreme experience can do so in total confidence, building upon the quality assurance of the expert engineering and exquisite finish for which X-BOW is recognised."