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HomeShopParts & AccessoriesVelocity StacksBT Moto Stage 2 Velocity Stack Kit Aprilia RSV4 1100 2026
BT Moto Stage 2 Velocity Stack Kit Aprilia RSV4 1100 2026

BT Moto Stage 2 Velocity Stack Kit Aprilia RSV4 1100 2026

SKU: BTM-APE-26RSV4-S2

$499.00

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Product information
Brand

BT Moto
Features
  • Designed for airflow modifications, filter, velocity stack and a slip on at minimum. Best with a complete Akrapovic or SC system for full maximization.
  • On average, gains of 5-15HP from the midrange and up were found over the baseline on a typical exhaust/filter bike with 93 octane fuel in the tank (Larger gains with race fuel)
  • Early Fan-On. Your Aprilia starts to pull power from the engine with high temps. We change the fan-on to 194 degrees to avoid this power loss and stalling from overheating in stop and go traffic. Most RSV4s push coolant in factory form and at redlights, this fixes it
  • Changes to fueling including part, mid and full-throttle while in configuration, per cylinder
  • Optimization of ignition timing at part and partial throttle for all fuel qualities
  • Adjustments to torque limiting to allow the bike to make 100% of its available engine torque at high load
  • RPM limiter raised from 13,600RPM to 14,200RPM (optional)
  • Changes to rev limiter per-gear tables for widest and safest possible powerband as the Factory 1100 cuts short in lower and upper gears
  • Exhaust valve adjustments for more power and torque with stock valve installed
  • Changes in factory unstable engine idle for stability and consistency off-throttle
  • Changes to a full 100% throttle opening in all modes and torque logic, versus a limited table per gear
  • Ability to move blinkers into headlights, requires euro light part numbers 2B012233 & 2B012234

Description

Through careful testing of the stock ECU on our recently acquired 2026 Aprilia RSV4 Factory 1100, we have decoded an otherwise NEW stout 222HP powerplant and ecu for even more rider enjoyment. Stage 2 takes our already potent Stage 1 Tune and turns it up to 11.

With full in-person datalogging in our closed dyno cell, we were able to find what the engine really liked and disliked. Through careful logging of ignition timing, per cylinder fueling and thermal management limiters, we were able to write an excellent calibration that is powerful in all temperatures and covers all octanes including poor California ACN91.

Compatible vehicles

MakeModelYear
ApriliaRSV4 11002026

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