Fmf Racing 041178 PowerCore 4 Full System with Stainless Steel Header (Natural) engine-crankcase-components-crank-bearings-seals All Street Series systems are

All Street Series systems are Slip-on/Bolt-on applications that do not require tampering with the vehicles emissions control system

Act as pre-muffler helping to lower the decibel output

Several pounds lighter that stock

1979-1981 Honda XL500S

Improved throttle response with a broader

Fmf Racing 041178 PowerCore 4 Full System with Stainless Steel Header (Natural) engine-crankcase-components-crank-bearings-seals All Street Series systems areMarketing Color: Natural Material: Stainless Steel Several pounds lighter that stock. Incredible performance at a great price. Hi Flo stainless steel core and formed end caps with aircraft grade aluminum canister. Full systems include durable stainless steel header. Vehicle Fitment: 2005 2009 Honda CRF70F 2011 2012 Honda CRF70F