Im assuming you meen your 02 GSXR since you didnt specify what kind of bike... But it would seem like you are trying to cheaply do this swap. All in all call that company and ask. Or go to
www.gsxr.com or
Suzuki GSX-R Motorcycle Forums: Gixxer.com if you want my thought it I would imagine yes you would have to change the wireharness and ECM.
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2005 Joe Gibbs Silverado # 0396
1988 Monte Carlo SS 5.3/T56 and too many mods.
2003 Honda 954RR