I want to put an all new exhuast on my 650R. Header, silencer, etc. Any opinions/advice on selecting a brand and model? I am thinkin White bros, but Im not all that familiar with all the choices. I want something to save weight, have a spark arrestor, and make SERIOUS power. I want to be responsible, so pissing-off the "greenies" with a too-loud exhuast is out. Not that I dont like pissing off greenies, its just that I dont want them shutting down our riding areas. What is your opinion?