HPI | Horse Power Ignition
Electronic fuel injection systems:

EFIS allow you to adjust the fuel addition depending on the RPM. All EFIS are available in both analogue and digital versions.

EFIS for 2, 3 and 4 cylinder engines

EFIS for one cylinder engines: fuel addition adjustable with trimmers (analogue units)

Programmable fuel addition : draw your own curve and program this curve into the EFI using our EFI software (digital units).
Installation manuals
English | Nederlands | Français
Download the EFI software

EFI001 (analogue unit)
EFI001D (digital unit)


Arctic Cat: 700 EFI (2007-2008),

Honda: CRF250R (2010-2011), CRF450R (2009-2011),

Husqvarna: TE 250 (2010),

Kawasaki: KX450F (2009-2011),

Polaris: Sportsman 500 (2006-2008),

Suzuki: LT-A700 KingQuad (2005-2007), LT-A750 KingQuad (2008-2013),

Yamaha: YFZ450R (2009-2011), YFZ450X (2010-2011), YFM550 Grizzly (2009-2011), YFM700 Grizzly (2007-2011), YFM700 Raptor (2006-2011)

EFI002 (analogue unit)
EFI002D (digital unit)


Suzuki: LT-R450 Quadracer (2006-2009)

EFI003 (analogue unit)
EFI003D (digital unit)


Kawasaki: KLX250 (2008), KLX250 D-Tracker X (2008),

Suzuki: RM-Z250 (2010-2012), LT-Z400 Quadsport (2009-2012), RM-Z450 (2008-2012)

EFI004 (analogue unit)
EFI004D (digital unit)


Gas Gas: EC 450 FSE (2006-2007), EC 450 FSR (2008-2010), MC 450 FSE (2006-2007)

EFI005 (analogue unit)
EFI005D (digital unit)


Yamaha: FZ1-N Fazer (2006-2011), FZ1-NA Fazer (2008-2011), FZ1-S Fazer (2006-2011), FZ1-SA Fazer (2007-2011)

EFI006 (analogue unit)
EFI006D (digital unit)


Can-Am: (single cylinder engines),

Husqvarna: SM 450R (2008-2010), TE 450 (2008-2010), SM 510R (2008-2010), TE 510 (2008-2010)

EFI007 (analogue unit)
EFI007D (digital unit)


Yamaha: R125

EFI008 (analogue unit)
EFI008D (digital unit)


Aprilia: Atlantic 250i (2006-2011), Scarabeo 250i Light (2006-2011), Sport City 250i (2006-2011), Scarabeo 300i Light (2009-2011), Sport City 300i Cube (2008-2011), Atlantic 400i Sprint (2005-2011), Scarabeo 400i Light (2006-2011), Atlantic 500i (2001-2005), Atlantic 500i Sprint (2005-2011), Scarabeo 500i (2002-2006), Scarabeo 500i Light (2006-2011),

Derbi: GP1 250i (2007-2011), Rambla 250i (2008-2011), Rambla 300i (2009-2011),

Gilera: Nexus 125i (2008-2011), Nexus 250i (2006-2008), Nexus 300i (2008-2011), Fuoco 500i (2007-2011), Nexus 500i (2003-2011),

Malaguti: Madison 250i (2006-2011), Spidermax GT 500i (2004-2007), Spidermax RS 500i (2008-2011),

Peugeot: Elystar 50 TDSI (2002-2011), Jet Force 50 TDSI (2003-2011), Looxor 50 TDSI (2002-2006), Elystar 125i (2002-2007), Geopolis 125i (2007-2011), Jet Force 125i (2003-2007), Satelis 125i (2006-2011), Geopolis 250i (2006-2011), Satelis 250i (2006-2011), Geopolis 400i (2007-2011), Satelis 400i (2007-2011), Geopolis 500i (2007-2011), Satelis 500i (2007-2011),

PGO: 500i (2007-2010),

Piaggio: MP3 125i (2009), Vespa 125 GTSi Super (2009-2012), Vespa 125 LXi (2009-2011), Vespa 125 LXVi (2010-2012), Vespa 125 Si (2009), X7 125i (2009), Beverly 250i (2006-2009), Carnaby 250i (2008), MP3 250i (2006-2008), MP3 250i LT (2009), MP3 250i MIC (2008-2009), Vespa 250 GTi (2006-2007), Vespa 250 GTSi (2005-2009), Vespa 250 GTVi (2006-2011), X7 250i (2008), X8 250i (2004-2007), XEvo 250i (2007), Beverly 300i (2009-2012), Carnaby 300i (2009), MP3 300i Hybrid (2010-2012), MP3 300i Yourban (2010-2012), Vespa 300 GTSi Super (2008-2013), Vespa 300 GTSi Super Sport (2010-2013), X7 300i (2009), Beverly 400i (2006-2009), MP3 400i (2007-2008), MP3 400i LT (2009), MP3 400i MIC (2008-2009), X8 400i (2006-2008), XEvo 400i (2007-2009), Beverly 500i (2002-2012), MP3 500i (2011-2014), X9 500i (2001-2007)

EFI009 (analogue unit)
EFI009D (digital unit)


Aprilia: Pegaso 660 Strada/Trail (2005-2011),

BMW: 650 F GS (2000-2009)

EFI010 (analogue unit)
EFI010D (digital unit)


Honda: CBR125RW (2007-2010),

KTM: 250 EXC-F (2012-2013), 250 SX-F (2011-2012), 350 SX-F (2011-2013)