BT Moto Stage 2 Flash and Velocity Stack Kit BMW R 1250 GS/R/RS/RT 2019+

***DISCLAIMER: FOR CLOSED COURSE COMPETITION USE ONLY. PENDING CARB APPROVAL. NOT INTENDED FOR STREET USE***
 
**All in-house testing performed with 93 octane pump gas, unless otherwise stipulated. Different modifications and dynometers may make different power. Usage of a lower octane will yield smaller power gains. All power is measured from the wheel and not the crankshaft, whp (wheel horsepower) and wtq (wheel torque)**
 
**All in-house testing performed with 93 octane pump gas, unless otherwise stipulated. Different modifications and dynometers may make different power. Usage of a lower octane will yield smaller power gains. All power is measured from the wheel and not the crankshaft, whp (wheel horsepower) and wtq (wheel torque)**
 
STAGE 2
 
2019-2024 BMW R 1250, STAGE 1 PURCHASE REQUIRED FOR STAGE 2
 
Coming from our Stage 1 upgrade of more power with better rideability, Stage 2 offers so much more! Our custom velocity stacks and revised tuning for the OEM widebands (on applicable models) not only gives a dramatic power increase but also overall better and more consistent rideability. Our easy to install custom velocity stacks don't shift the powerband over and decrease power down low. We managed to make more power everywhere, as we know these bikes aren't for racing or staying high in the RPM band. Careful consideration was taken in every aspect of Stage 2 to fit the bikes application and riding style.
 
 
WHAT STAGE 2 INCLUDES
 
BT Moto velocity stack kit (install video below)
FTCL (full-time closed loop) lambda targeting enabled for all applicable models. This self-tuning feature is our most popular feature for BMW Motorcycles
Correct fueling on both banks for BT Moto Velocity Stacks
Decel fueling and engine braking changed for smoother throttle on/off transitions
More precise throttle inputs while still allowing mode based changes by the ECU
Smoother quickshifter that removes the OEM jerky feeling from shifting up and down
Power increased over the entire RPM band, from low RPM to redline (dyno sheets below
Per gear torque restrictions removed
Knock control adjustment for max power
 
 
BT MOTO VELOCITY STACKS
 
3D printed from lightweight composite, the BT Moto Velocity Stacks have been carefully engineered and designed to maximize power in the higher RPM range while not losing power in the low RPM range.
 
Made for a perfect fit, the BT Moto velocity stacks have a relief notches at the bottom of each funnel to ensure tight fitment while also being easy to install. These are plug-and-play and require no additional modifications to your airbox to fit. Simply unscrew your factory velocity stacks and screw ours in. Coupled with our engineered flash, the combination makes an extremely easy install and tune that can be done in your own garage.
 
 
*This stack kit will work on any BMW motorcycle with part number: 13718567190 for its airbox**
 
DYNO Testing
 
Below is our Stage 2 flash with and without our BT Moto velocity stacks. You can see little to no loss in the mid and low-range RPM. Up top you can see a significant gain. All on pump gas 93. Same day testing on the same bikes.
 
https://bt-moto.s3.us-west-1.amazonaws.com/wp-content/uploads/2022/04/stockvs.stg21250CRP.jpg
 
BLUE LINE - Stage 2, 93 Pump Gas: 141WHP / 113WTQ
RED LINE - Factory Tuning, 93 Pump Gas: 128WHP / 102WTQ