Are pypes pype "bombs" legal in San Bernadino County, California?

I want to add pypes pype bombs muffler deletes with resonator tips to my 08 mustang gt. I cant find the sound laws. also im in the inland empire, california area. I hear its very obnoxious and my neighbors wont mind. my friends neighbor has a ford gt with borlas and doesnt get in trouble so i was hoping the pype bombs will be fine.