BT Moto M Race Velocity Stacks for BMW S1000RR (2015–2019)

BT Moto M Race Velocity Stacks – BMW S1000RR (2015–2019)

Race-Optimized Airflow. Requires Custom Fuel Mapping for Maximum Results.

Description:

After over a year of in-house research and testing, the BT Moto M Race Velocity Stacks for the 2015–2019 BMW S1000RR are finally available. While velocity stack upgrades are common in Japanese sportbikes, the unique and complex airbox design of the S1000RR has always made this upgrade more challenging—until now.

BMW has changed its airbox geometry several times over the years, particularly for HP4 Race and WSBK applications. After analyzing and comparing all versions, BT Moto engineered a purpose-built solution that works within the OEM airbox to improve top-end power and midrange response, giving race-focused riders a real performance advantage.

Why Choose BT Moto Over Other Brands?

Many third-party stacks in the market suffer from serious design flaws:

• Use of soft rubber grommets that collapse under high airflow and RPM

• Oversized dimensions that interfere with the adjustable stack servo, causing mechanical failure

• No meaningful change to AFR (air/fuel ratio), proving airflow isn’t actually improved

• In some cases, less power than stock!

In contrast, BT Moto's stacks are precision-engineered to deliver smoother airflow, eliminate the common power dip around 11,500 RPM, and enhance breathing at high RPMs. They also produce a more aggressive intake sound, which appeals to both racers and enthusiasts.

Important Note:

Custom fuel tuning or AFR adjustment is required to achieve the advertised performance gains.

This product is not plug-and-play and should not be used without verifying air/fuel ratios using a wideband sensor or fuel controller (e.g., Power Commander).

These stacks are ideal for fully bolted or tuned bikes, and work with both flashed or piggyback-fueled setups. Without the proper tuning, results may be limited.

Dyno Results – 2017 S1000RR (VP100 Race Fuel):

• BLUE (Stock Stacks): 206 WHP / 94 WTQ

• RED (BT Moto Stacks): 209 WHP / 93 WTQ

While peak power numbers are close, the powerband curve tells the real story. The BT Moto stacks provide smoother delivery and maintain stronger power above 11,500 RPM—crucial for competitive racing.

Key Features:

• Designed for BMW S1000RR (2015–2019) – K46 Platform

• Constructed from high-grade CNC billet aluminum

• Requires no cutting or permanent modification

• Works best with custom fuel tuning or piggyback fuel systems

• Resolves known high-RPM power dips

• Improved intake sound and high-RPM response

• Ideal for fully tuned or race-prepped bikes

• Easily reversible to stock if needed