Features a screen-type spark arrestor that does not interrupt exhaust flow or performance. Computer designed and dyno-tested for every 4-stroke application. 2001-2005 Yamaha Raptor 660R YFM660R. Years Make Model Notes.
I installed this FMF silencer with the Powerbomb head pipe on a 2001 raptor 660 it produces more power throughout the entire rpm range. You can really feel a difference when you nail the throttle