The 2006 Yamaha FZ1 is 9 lbs lighter than it's 2005 predecessor and sports a thundering 998cc DOHC 20 valve R1 engine - a street machine that's tough to beat by any standard.
By replacing the OEM exhaust canister and slip tube with a precision built Two Brothers Racing performance slip-on exhaust system you'll cut an additional 11.35 lbs from your bike as well as significantly increasing both horsepower and torque throughout the entire powerband. View Dyno Chart

Our small oval M-2 V.A.L.E.^TM  features our exclusive Teflon coated, blunted, cast magnesium outlet that not only looks great but also allows for various silencer inserts.

The V.A.L.E.^TM inlet design eliminates the use of springs and creates an adjustable mount that is solid when fixed in place. The system also features a thinwall s-bend tube that connects to the factory header pipes.