Is anyone running this configuration? I haven’t bought an exhaust mainly due to price but also noise. Stock, the bike is fairly loud. I mostly ride track but some street. The Bren tune has some features I’m really interested in from a ride ability standpoint plus the throttle 1:1 ratio. But for the track I can’t help but to think I’m leaving some on the table by not putting an exhaust on it. A slip on would be probably the best solution as I could go back to stock for noise controlled tracks (Laguna). But is it worth it? Any thoughts?