Racing Stage 2 Kit For RS 660 And Tuono 660 E5+ (2025 – USA 2026) With UpMap And GRT Velocity Stacks

Racing Stage 2 Kit For RS 660 And Tuono 660 E5+ (2025 – USA 2026) With UpMap And GRT Velocity Stacks

The Racing Stage 2 Kit For RS 660 And Tuono 660 E5+ (2025 – USA 2026) With UpMap And GRT Velocity Stacks is a plug and play upgrade developed for the new Aprilia RS 660 E5+ and Tuono 660 E5+ model year 2025 (USA 2026). This Stage 2 racing kit combines the UpMap T800+ ECU device with the latest GRT velocity stacks to increase torque from mid to high revs, sharpen throttle response and make power delivery smoother, while keeping reliability for intensive sport and track use.

Description

This Racing Stage 2 kit follows the same philosophy as the previous RS 660 and Tuono 660 Stage 2 bundle, but it is specifically designed for the updated E5+ 2025 (USA 2026) platform. By pairing the UpMap T800+ Aprilia RS660 Tuono 660 E5+ 2025 (USA 2026) with the dedicated GRT velocity stacks for Aprilia RS 660 and Tuono 660 E5+ (2025 EU – 2026 US), you get a complete intake and ECU package: optimised intake trumpets increase airflow efficiency from around 8000 rpm to the limiter, while UpMap manages Gabro Racing Team ECU maps tailored to this setup.

The result is a Racing Stage 2 Kit For RS 660 And Tuono 660 E5+ (2025 – USA 2026) With UpMap And GRT Velocity Stacks that transforms the character of the RS 660 and Tuono 660 E5+ with stronger acceleration, a fuller upper rev range and a more engaging intake sound, without needing to modify the stock airbox or wiring.

What The Stage 2 Kit Includes

• UpMap T800+ Aprilia RS660 Tuono 660 E5+ 2025 (USA 2026)
  ECU device that connects to the diagnostic port and allows you to remap the stock control unit via Bluetooth with your Android or iOS smartphone. The purchase includes two maps: the original map to restore factory settings and one Gabro Racing map valued at €118, downloadable using the GRTMAP coupon. The T800+ saves the OEM file, writes new calibrations, performs automatic throttle grip and throttle valve learning, lets you clear electronic errors and offers a real time dashboard with engine data. Once paired to your bike VIN, the device works exclusively on that motorcycle. Product page: UpMap T800+ Aprilia RS660 Tuono 660 E5+ 2025 (USA 2026).
• GRT Velocity Stacks For Aprilia RS 660 And Tuono 660 E5+ (2025 EU – 2026 US)
  Dedicated velocity stacks kit for RS 660 and Tuono 660 E5+ 2025 EU and 2026 US. These intake stacks are 3D printed in PA12 nylon and are the result of extensive prototype testing to optimise length and taper. They significantly improve torque and power from about 8000 rpm to the limiter and give a deeper, more pronounced intake sound. The kit is supplied with installation instructions and includes a free €168 coupon to download a custom ECU map from the UpMap Store for configurations with stock or racing exhaust. Product page: GRT Velocity Stacks For Aprilia RS 660 And Tuono 660 E5+ (2025 EU – 2026 US).

Advantages

• Complete Stage 2 package for Aprilia RS 660 E5+ 2025 (USA 2026) and Tuono 660 E5+ 2025 (USA 2026), combining ECU management and intake stacks in a single coherent kit.
• Improved torque and power at high revs thanks to the GRT velocity stacks, designed to increase efficiency from 8000 rpm up to the limiter.
• Sharper throttle response and smoother power delivery through optimised intake flow and dedicated Gabro Racing Team maps loaded via UpMap T800+.
• More engaging intake sound, deeper and sportier, to match the performance character of the RS 660 and Tuono 660 E5+.
• Smart ECU control: UpMap allows you to back up the stock map, load and change calibrations, clear DTC codes and view engine parameters on your phone.
• Plug and play installation: no permanent modifications to the airbox or wiring harness, and the bike can be returned to the original configuration at any time.
• Extra value in maps thanks to the GRTMAP coupon included with the T800+ (one Gabro map worth €118) and the €168 coupon supplied with the GRT velocity stacks, which unlocks a dedicated ECU map for this Racing Stage 2 kit.

Technical Details

• UpMap T800+ RS660 Tuono 660 E5+:
  • Works via Bluetooth with Android and iOS smartphones, using the UpMap app.
  • Includes the original ECU file and one Gabro Racing map worth €118, both downloadable using the GRTMAP coupon.
  • Further maps available (Track, MTorque, Stacks, Airbox) by paying the price difference at checkout or combining GRTMAP with coupons from ASpecialParts kits.
  • Comes with OBD connection cable; after writing, it automatically performs throttle grip and throttle valve learning.
  • App functions include error clearing and a real time dashboard with engine operating data.
  • Device is locked to the VIN after the first pairing and is developed for closed circuit racing use only.
• GRT velocity stacks RS 660 Tuono 660 E5+:
  • Material: PA12 nylon 3D print, chosen for strength, lightness and precision.
  • Geometry developed through multiple test prototypes to maximise efficiency at high rpm.
  • Performance focus from around 8000 rpm to the limiter, with a noticeable gain in torque and engine response.
  • Deeper, more pronounced intake sound for a sportier riding experience.
  • Supplied with a free €168 coupon for a custom ECU map on UpMap Store, valid for both stock and racing exhaust systems.
  • Installation with included instructions; no permanent modifications required.
• Use: the GRT velocity stacks kit and the corresponding UpMap ECU maps are intended for race use only and are not approved for public road traffic.

Compatibility

The Racing Stage 2 Kit For RS 660 And Tuono 660 E5+ (2025 – USA 2026) With UpMap And GRT Velocity Stacks is designed exclusively for:

• Aprilia RS 660 E5+ 2025 (USA 2026)
• Aprilia Tuono 660 E5+ 2025 (USA 2026)

It is not compatible with previous RS 660 or Tuono 660 model years. For 2021-2024 (USA 2025) models, use the dedicated Racing Stage 2 kit available separately on ASpecialParts.

Installation And Map Management

• Install the GRT velocity stacks kit in the original airbox following the instructions supplied with the product.
• Connect the UpMap T800+ to the diagnostic port using the included OBD cable and pair it with your smartphone through the UpMap app.
• Save the stock ECU map as a backup, then redeem the GRTMAP coupon and the €168 coupon supplied with the GRT stacks to download the recommended Gabro Racing Team maps for your E5+ configuration.
• Upload the chosen map, allow the device to complete throttle grip and throttle valve learning, then check for stored error codes and clear them through the app if necessary.
• After installation, perform a short test ride in a safe area to verify correct engine operation and throttle response.
• For optimal safety during programming, use a battery charger or maintainer to avoid voltage drops while the ECU is being written.

FAQ

Which bikes is this Racing Stage 2 kit for?
This Racing Stage 2 kit is designed specifically for Aprilia RS 660 E5+ 2025 (USA 2026) and Aprilia Tuono 660 E5+ 2025 (USA 2026). It is not compatible with earlier model years.

Do I need an aftermarket exhaust to use this Racing Stage 2 kit?
No, the GRT velocity stacks and UpMap T800+ already offer a clear performance gain even with the stock exhaust. The coupon included with the stacks lets you download a custom map for both stock and racing exhausts, so you can choose the calibration that matches your configuration.

Can I restore the original ECU map?
Yes. The UpMap T800+ always saves the factory ECU file before any modification. You can restore the stock map at any time directly from the app and refit the original intake parts if you want to return the bike to standard.

Is this Racing Stage 2 kit street legal?
No. Both the UpMap ECU maps and the GRT velocity stacks are developed for racing use on closed circuits only. They are not homologated for public road traffic and should be used in compliance with local regulations.