Italian specialist HP Corse has three different exhausts available for the KTM 790 Duke, two of which are Euro 4 approved, the third available in "race only" version; the two Euro 4 versions with high level silencers - the 4-Track and the EvoXtreme - the 'Hydroform Corsa' track versions - with a shorter, race style design.
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| EvoXtreme for KTM Duke 790 |
The company say that the 4-Track version "loves adventure, fully embodying the desire for escape and the purest motorcycle spirit". Dyno and street tested in "the most demanding situations", 4-Track "guarantees reliability and gives the Duke elegant back lines" while delivering power gains at low and medium speeds; available in two materials and three different finishes - titanium, satin steel, black steel in choice of styles, including their unique octagonal design.
The 310 mm, high level Euro 4 approved EvoXtreme is designed for the original manifolds, redesigning the profile and rear look of the Duke, "adding new aggressiveness and wickedness." With a small carbon cover, it is available in silver steel, black steel or titanium. The silencer body has an irregular shape and shrinks to slip-on securely without using welds. The bottom is in carbon fibre with a "slash" profile join.
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| Hydroform Corsa for KTM Duke 790 |
The Hydroform Corsa "fully embodies the racing spirit" and is formed under high pressure to allow a design and profile that would not be possible using conventional bending and welding techniques.
It features a reduced wall thickness without compromising strength and rigidity, a mesh grille, reduced weight and excellent gas flow due to the perfectly smooth internal walls; available only in "race" version without dbk.
A Euro 4 approved 400 mm 4-Track is also available for the BMW R 1250 GS and 1200 GS, weighing less than the OE exhaust at 3,920 kg in the satin or black steel versions or just 3,470 kg in titanium.
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| 4-Track for BMW R 1250 GS |
Available in the same two materials and three finishes (with hydroformed end cap), the 4-Track for the Honda 'Africa Twin' (and all 'Maxi Enduro', Sport Touring/Adventure models and the latest generation Crossovers) "guarantees reliability and gives the Africa Twin a slimmer rear profile which improves dynamic performance while improving performance, especially at low and medium speeds".
HP CORSE
www.hpcorse.com
