AHHAA, the old picture worth a thousand words axiom. I (we) initially were thinking STOCK factory Harley stuff. You may well have a 2006 titled bike with an Evo STYLE (HD or other mfg.) engine. From what I can see in your pic. you may have an aftermarket softail style (custom) frame. The way to tell is by serial numbers.
All Harley 17 digit frame vin numbers since 1981 start 1HD1xxxxxxxxx. The engine number will match 3 alpha characters of the vin, and the last 6 numeric digits. There are many possibilities of what you have. At least 6 companies make an engine almost exactly like a Harley Evo. About 100 companies have made frames for Evo engines. In both cases, the serial number, will tell.
There may be subtle stamp on engine case like S&S, Delkron, Revtec, Ultra, etc.
or maybe not. If you tell me the numbers on the frame and engine, I may be able to tell you more. For confidentiality, enter x's for the last 6 digits.