If you want to modify your JC61 Grom , you need this imap controller & this plug and play harness. All instructions are in Japonese , but the imap controler "pigyback" the ECU , injector and TPS switch. You have 14 pre-sets and can save well over 60% cost saving on any other product avalible in Europe . Your original harness plugs into the KITACO & the Kitaco plugs into ECU , injector , Throtle position sensor, job done . They would easly have 5 stars with better instructions.
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Looks like you access from European region.
Would you shop at webike.eu.com?

