Item: Graves Motorsports Velocity Stack Kit

Application: Yamaha R1 (2004-06) FZ1 (2006-08)

Description: The Graves Motorsports YZF-R1 Velocity Stack Kit is specially designed to suit the new fuel injected Yamaha Motor. The kit of 4 injection molded plastic intake stacks mount directly into the stock airbox without modification and is designed to smooth out the power curve, increase horsepower throughout and improve fuel efficiency. Power gains of 4 HP in the mid range and 2 HP at the top end are to be expected.

Installation Instructions

Dyno Chart R1: Graves Velocity Stacks with Graves Full Exhaust System vs. Graves Full Exhaust System

Dyno Chart R1: Graves Velocity Stacks with Graves Slip-Ons vs. Graves Slip-Ons

Dyno Chart R1: Graves Velocity Stacks with Stock Exhaust System vs. Stock Exhaust System

Dyno Chart FZ1: Graves Velocity Stacks with Graves Slip-On Exhaust System and Power Commander (Graves map) vs. Stock Exhaust System