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Flanges are made from 7075 T651 hard anodized aluminum
Beautifully designed pieces to cover the raw OEM bolt heads on your engine
this racing track–oriented system requires mandatory remapping and removal of the passenger footrest
10 pound weight saving over stock
Constructed from high-grade stainless steel and finished with a striking sandblasted muffler
PRO CIRCUIT Head Pipe - Stainless Steel YZ450F 2003-2005 4Y03450H 4-1/2" Diamond Light Flanges are made from 7075Titanium headpipes are lightweight and hand assembled for a perfect fit and Works type finish Specially shaped stainless steel headers improve performance when compared to stock headers; built from 304 stainless steel to ensure maximum durability and corrosion resistance 2003 2005 Yamaha YZ 450 F 2003 2005 Yamaha WR 450 F Fitment Disclosure This quick reference fitment information is provided to direct you to our catalog information and the