Building time: 3 to 4 weeks

Completely new velocity stacks for the 2015-2019 R1, set includes lower stacks / upper stacks & bolts. Testing from WSBK and BSB teams show that the MWR Stacks delivers the same power as the Official YEC velocity stacks for a fraction of the price.

Completely new velocity stacks for the 2015-2019 R1, set include lower stacks, upper stacks & bolts.

The completed tests from WSBK & BSB teams show that the MWR stacks deliver the same power as the official YEC stacks just much less cost!

Installation is the same as OEM stacks, no modifications are needed.

The kit 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. Be sure to use all included hardware for optimal results.

Can take up to 2-3 Weeks for delivery.

Decat 3/4 Razor Tip Exhaust System
The R1 Decat system was engineered for the best possible flow of the 998cc Engine we were able to achieve with our handmade products. The Razor Tip exhaust for the R1 boasts the true sound of the Crossplane engine and frees up plenty of airflow from dropping that heavy muffler box.  The System pairs beautifully with our ECU Flashing Service, MWR Kit, and Sprocket Kits to put the hidden power behind all the ECU-based restrictions that rob the bike of its true potential.  The low clearance, lightweight design, and optional DB Killer make it the perfect setup in our opinion.

MWR High-Efficiency Air Filter
Washable, Reoilable, Performance filter with Maximum Protection and perfect design + fitment. The HE Filters specifically help with air turbulence and not only provide more equal flow to each cylinder, but reduce intake noise as well.

ECU Flashing (2015-2019 Only)
A "mail-in service" Eliminating the need for piggyback fuel computers, Toce offers a same-day turnout ECU Flashing Service. Simply purchase the flash with the exhaust, and upon email confirmation, you'll receive instructions on how to mail us your computer. Remove the unit, send it to Toce Headquarters, and we'll flash it the day it's received, package it with your exhaust and ship everything out to you in one big insured box. 

Toce ECU Flashes include corrective fueling for all modes and on both the IAP and TPS Maps. With cooler fan temp settings, reduced engine braking, and unrestricted factory settings, you'll experience smoother drivability and more power... 

After Exhaust + Tune - +30-35 Increase in horsepower on average and  14-15 torque, providing a smoother low-end band with cleaner throttle response, less engine braking and more peak power.

Adjusted parameters for the following: (Varies by Model + Year)IAP Fuel Maps
TPS Fuel Maps
Ignition Timing Maps
Ignition Dwell Maps
Electronic Throttle Valve (ETV) Maps
Coolant Idle Compensation Maps
Acceleration Enrichment
Injector Timing Maps
Injector Balance Maps
Intake Flap Opening Maps
Adjust RPM Limiter (Upon Request)
Adjust Fan Temperature (Cooler Run)
Disable Stock O2 Sensor (By Default)
Disable PAIR Valve / AIS
Disable Top Speed Limiter (By Default)
Disable Exhaust Valve
Disable Deceleration Fuel Cut (By Default)

Flashes will not be completed unless the release is signed and sent to us with your computer. 
Flashes are completed the same day they're received and will be shipped back with your exhaust system. 

MWR Components may be shipped directly from the supplier. We will update you with tracking information in the event this is the case.