boatjohn75
New member
So I bought a small pontoon with a 9.9 EFI ProKicker because I was going to use it on a 10 HP limited lake (trailering). Instead, I ended up on a 20 HP limited lake (wet slip), and wish I had a bit more power. The 9.9 and 15 EFI seem identical, except for, I assume the ECU. How hard would it be to swap this out? And is it just an ECU swap or more? I see an ECU part number of 8M0173455 for the 9.9 and 8M0135815 for the 15. Any thoughts?
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