Welcome to th Bonneville Forum!
Please add your year and trim of your vehicle to your signature line. That way when you start asking questions in other areas of the forum, we all have a better idea on how to assist you. Click on "Quick Links" above, go down to "User Control Panel" and then click on "Edit your Signature" It'* pretty straight forward from there.
One of the things you will quickly learn is that there are not allot of manufactured items specific for the Bonneville. Many of the members in this forum share ideas of things they have tried and or items that they modified (mod) to fit their vehicle.
If you are looking at clearing the corners of your headlights, this will give you and iea of what it takes http://www.gmforum.com/t278814/
Please post your questions in the appropriate areas of the forum. This will help guide members to you who can better assist.