Jetprime Memjet Evo ECU for Buell 1125 / XB9 / XB12 / S1 / S3 / X1 Lightning (JPMJ012)

The Memjet EVO ECU is designed to improve throttle response and
smoothness on electronically fuel-injected motorcycles, optimizing the
fuel mixture without the need for remapping or invasive modifications to
the original electronics.

Modern motorcycles, in order to comply with emission regulations, often
run very lean fuel maps that can result in low-end hesitation, uneven
response, and a pronounced on/off effect.

Memjet EVO acts on the air temperature sensor signal (IAT), allowing the
original ECU to automatically adjust injection parameters. This results
in a fuller, smoother, and more responsive throttle while keeping all
factory management and safety logic fully active.

The module features a 0–10 adjustment range. At setting 0, the bike
remains in standard configuration; progressively increasing the value
enriches the fuel delivery until the ideal setup is found based on the
level of modification (exhaust, air filter, etc.). Adjustment is immediate and requires no software, remapping, or dyno.

Installation is simple and fully reversible; the product is plug and
play and supplied with wiring specific to the selected motorcycle model.

Intended exclusively for sport use on
closed circuits.

Model Fitment

Make Model Start Year End Year
Buell 1125 CR 2009 2010
Buell 1125 R 2008 2009
Buell S1 Lightning 1996 1998
Buell S1 White Lightning 1998 1998
Buell S3 Thunderbolt 1997 2002
Buell S3T Thunderbolt 1997 2000
Buell X1 Lightning 1999 2002
Buell XB12 Lightning SCG 2006 2009
Buell XB12 Lightning SS 2006 2009
Buell XB12S Lightning 2004 2008
Buell XB12SX City X 2009 2010
Buell XB12X Ulysses 2006 2009
Buell XB9R Firebolt 2002 2007
Buell XB9S Lightning 2003 2004