Changing 2007 Mercury 90hp 4 stroke ECM to a 115hp ECM?

rivrhnd

Cadet
Joined
Jun 29, 2007
Messages
7
I have heard it can be done but costly. Tracker told me about $1200 and I was wondering if there are any other options other than used. Buying used electronics is always a risk IMO. Also, does it do anything to my warranty?

The boat it sits on, a Targa 175, is just a bit heavy for this motor. It does get up on plane and goes in the upper 20's but with 4 people in it, it just struggles a bit getting on plane. I'm thinking the extra 25 ponies will help. This is with a 19 degree prop at sea level. I have a 15 degree for the mountains but it does lose a lot up top. Any input would be appreciated.
 
Top