It's for a Shadow. They used to include the P-clamps but do not anymore. Smaller lights will give a wider look, obviously. Here's the part numbers:

Bar - 01ZX1176W
P Clamps - ZX019963R
Lights (5" - 55W) - 88ZX8602P

Use the link below and plug these numbers in the search box.
http://www.jcwhitney.com/autoparts/StoreCatalogDisplay/c-10111/s-10101

I wrote the whole thing up and you can download that doc here:
http://storeandserve.com/download/440517/Project_-_Lightbar.doc.html

"Never underestimate the power of human stupidity" - Robert Heinlein