MWR Velocity Stacks Yamaha YZF-R1/S/M 20-24
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Direct from Wilco, the founder of MWR, and the genius behind these championship winning intake designs -
"BIG NEWS!! Completely new velocity stacks for the 2015-2019 R1, set includes lower stacks / upper stacks & bolts. The first tests have already been done by WSBK & BSB teams showing that the MWR stacks deliver the same power as the official YEC stacks just much less cost!"
The installation instructions are included.
Installation is the same as OEM stacks , no modifications needed.
The R1 velocity stacks set contains only the stacks + installation bolts . The mechanism , the bushings (4x push-in) and plain bearings (5x click-on) must be transferred from the original set.
Use the supplied bolts.