I just ordered a slip on from Firebrand. The dealer had just put one on a new Street in the showroom. Best sound that I have ever heard.

It is a new company formed by two former Vance and Hines employees.

4" diameter in chrome or black ceramic. It has a better looking fit against the header pipe heat shield than stock. It is shorter also so there is some weight savings.

 

The "Grand Prix" or the "Loose Cannon"?

 

I went with the Vance and Hines comp series, mainly to have the option of running with the sound dampener or without. Sounded good with it in, but sounds awesome with it out.