Single motor having them buy the parts and install I would estimate about $400. For twins I would estimate the bill being around $600.

Doing it yourself about $130 and a days work because of the cables and making sure they are right. Takes a few times and a few beers to get the cables right, for those that are learning.

I'm sure the ones that do it for a living will PM you the exact amount they will charge.

                                     One of the crew at Posner Marine