I've yet to see one that worked as advertised.
Before buying a tune, ask the Tuner what the 4 strokes of a 4 stroke engine are in the order they occur. I'll bet that he can't answer you with an immediate recital.
Most of these guys raise timing limiters, remap the throttle and just guess at everything else.
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Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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