WOSSNER offers a steel exhaust valve conversion kit combining strength and performance for YAMAHA WRF 450cc, YAMAHA YFZ 450cc, YAMAHA YFZR 450cc, YAMAHA YZF 450cc motorcycles. Supplied with high-quality valves and springs, this kit guarantees exceptional durability and optimum performance under heavy loads. Designed for demanding engines, it ensures consistent performance and enhanced reliability, both in intensive use and in racing conditions.

Fits on :

YAMAHA WRF 450 2004

YAMAHA WRF 450 2003

YAMAHA WRF 450 2005

YAMAHA WRF 450 2006

YAMAHA WRF 450 2007

YAMAHA WRF 450 2011

YAMAHA WRF 450 2010

YAMAHA WRF 450 2009

YAMAHA WRF 450 2008

YAMAHA WRF 450 2015

YAMAHA WRF 450 2014

YAMAHA WRF 450 2013

YAMAHA WRF 450 2012

YAMAHA YFZ 2WD 450 2009

YAMAHA YFZ 2WD 450 2008

YAMAHA YFZ 2WD 450 2007

YAMAHA YFZ 2WD 450 2006

YAMAHA YFZ 2WD 450 2005

YAMAHA YFZ 2WD 450 2004

YAMAHA YFZR 2WD 450 2009

YAMAHA YFZ SPECIAL EDITION 2WD 450 2009

YAMAHA YFZ SPECIAL EDITION 2WD 450 2008

YAMAHA YFZ SPECIAL EDITION 2WD 450 2007

YAMAHA YFZ SPECIAL EDITION 2WD 450 2006

YAMAHA YFZ SPECIAL EDITION 2WD 450 2005

YAMAHA YFZ SPECIAL EDITION 2WD 450 2004

YAMAHA YZF 450 2003

YAMAHA YZF 450 2004

YAMAHA YZF 450 2005

YAMAHA YZF 450 2009

YAMAHA YZF 450 2008

YAMAHA YZF 450 2007

YAMAHA YZF 450 2006