Hi .. I buy my butt connectors, etc. from this outfit .. great service, etc... I was looking for some multi-connectors for my rotators when happened to bump into these nifty items for mobile hams with coil-on-sparkplug noise problems. Looks nifty and way less expensive than new from the dealer! http://www.sherco-auto.com/coiltune.htm >no connection to the store< Mark, AA6DX