RyanA 4 months 17 days ago Location: Roseville, CA, USA
Does this tip fit onto stock exhaust system? If so, does it fit with spark arrestor or come with one?
I got popped for too loud of pipe (99db) and I need to get to 96db.
MotoSport Staff 4 months 16 days ago Location: Portland, OR, USA
Unfortunately this is only available for Pro Circuit Exhaust systems and will not fit the stock muffler on your 2009 YZ450F. For your stock exhaust the only option would be to purchase a Pro Moto Billet end cap and one of their quiet inserts. The other other option is to purchase a complete muffler Such as the FMF Powercore 4 that has available quiet inserts.