Overview
2017+ Aprilia RSV4 Velocity Stack Kit
With the success and amazing feedback we've gotten from our Aprilia flashes, we wanted to turn our focus to getting into the engine in a more efficient way. Our custom velocity stacks and revised tuning not only gives a very decent, top-end power increase, but also doesn't loose any power in the low or midrange of the RPM. Our easy to install, custom velocity stacks don't shift the powerband over and decrease power down low. We managed to make more power where it matters without sacrificing that torquey punch we've grown to love on the RSV4.
Experimenting with many designs, we found a design that works perfect for this bike. We spent months testing and developing this stack designs. We have found this design makes the best power for the RSV4 (dyno results below). With our custom stack tuning, there's no need to worry about your bike having rideability issues either.
*VELOCITY STACKS DO NOT REQUIRE FLASH PURCHASE BUT IT IS RECOMMENDED FOR ADVERTISED RESULTS*
BENEFITS
- Custom velocity stack designed for YOUR airbox. No one size fits all approach.
- OEM fitment and ability to go back to stock when ever you'd like.
- Plug and play
- Gain 5+HP (depending on bike and mods) at higher RPM's (with BT Moto Flash).
- 2-3mph Trap speed increases in quarter mile and half mile
BT MOTO APRILIA VELOCITY STACKS
Custom composite with our logo and torqueing specs etched into them, 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 an OEM fit, the BT Moto velocity stacks bolt to the airbox 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 remove your factory velocity stacks and install. Coupled with our custom flash, the combination makes an extremely easy install and tune that can be done in your own garage, with basic tools and minimal mechanical knowledge.
DYNO
DYNO TESTING
BLUE LINE - BT Moto Stage 1, 93 Pump Gas, Bolt-Ons, BT MOTO STACKS
RED LINE - Factory Tuning, 93 Pump Gas, Bolt-Ons

Below is stock 2021 Aprilia RSV4 baseline and with our stacks. We made no changes and did not flash the bike. Only change on the below dyno sheet is our stack install on the dyno. You can see peak gains and no loss, with the exception of 8500RPM where the AFR needs adjustments. All on pump gas 93. Same day testing on the same bike.
BLUE LINE - Factory Tuning, 93 Pump Gas, BT MOTO STACKS
RED LINE - Factory Tuning, 93 Pump Gas

THE BT MOTO HANDHELD TUNER
BT MOTO HANDHELD PERFORMANCE TUNER AND WHAT ARE THE BENEFITS OF HAVING ONE?
Custom tuning at your finger tips on your schedule. Read and write your own motorcycles ECU from the comfort of your home. No need to bring your bike to a shop, our easy to use handheld can be used in your spare time with quick turn around. You now have a virtual custom personal tuner at your finger tips. Thoroughly tested by our own engineers, not just for its function but also durability, our easy to use handheld is just what you'll need to help get the most from your motorcycle!
CAN I JUST SEND IN MY ECU FOR FLASHING AND SPEND LESS? LET'S GO OVER THE ADVANTAGES.
- NO DOWNTIME - No need to send in your ECU or remove it from your bike at all. You order the handheld, it get's delivered to you nearly instantly, and you flash your bike on your time easily. You never miss a day of riding and no effort removing the ECU. Any issues, you can revert back to the full stock state.
- READ AND CLEAR CHECK ENGINE LIGHTS - Full code reading diagnostics included in the device.
- STORE MULTIPLE MAPS - When you send in your ECU, you only get one map. You might be thinking, "why would I need more than one map?". Storing multiple maps means you're able to flash for different configurations. If you're a serious track competitor, we can work with you to get you different mapping for different tracks. If, for example, you're add modifications to your stock bike, we can email you a file that takes the new exhaust into account with the changes you need to optimize your bike's new modifications with no mailing needed.
- GO BACK TO STOCK ANYTIME - Not only can you store multiple files, you can also flash the original, stock file back into the bike at any time and for any reason for service, sales, and more.
- ABILITY TO TUNE FUTURE BIKES - Customers swap bikes all the time! With our handheld tuner, you are able to put the first bike back to stock, then reset the device and use the same device on your next bike, with a simple and low cost transfer fee.
- ANY ISSUES? We can resolve nearly anything remotely really quick with our engineering staff.
RESOURCES / DOWNLOADS
DOCUMENTS
Device Reset FAQ and How-To PDF
BT Moto Flasher+ Troubleshooting Guide
VIDEOS
How To Install Handheld Tuner
How To Install BT Moto RSV4 Velocity Stacks