We include butt-connectors for your connections however, we recommend soldiering when possible.
Make sure you verify what size fuse is recommended by your water pump manufacturer. The 15 amp fuse included may be too big or too small.
If you are having any trouble with your installation, please feel free to Contact Us. You may also find posts from people who have installed our kits on www.ls1.com helpful, along with community input on your issue.