MWR Performance Velocity Stack Kit for Yamaha YZF-R1 / R1S / R1M 2020 - 2026

MWR Performance Velocity Stack Kit for Yamaha YZF-R1 / R1S / R1M

The MWR Performance Velocity Stack Kit is the complete intake stack upgrade for the 2020–2026 Yamaha YZF-R1, R1S, and R1M. Unlike the lower STREET stack kit, this complete setup includes both the upper and lower velocity stacks, giving riders the full MWR intake package for stronger airflow and serious performance-focused builds.

Developed from MWR’s race-proven intake designs, this kit is built for riders looking to improve intake efficiency, sharpen throttle response, and support higher-performance exhaust and ECU tuning combinations. Supplier information notes that WSBK and BSB testing showed the MWR stack kit delivering performance comparable to the official YEC stacks at a much lower cost.

Lower STREET Stacks vs. Full MWR Stack Kit

Choose the lower STREET stack kit if you want a simpler, more budget-friendly upgrade that keeps the bike street-focused and works with the existing upper stack setup. Choose this complete MWR kit if you want the full upper-and-lower stack package for a more complete intake upgrade.

Key Features

• Fits 2020–2026 Yamaha YZF-R1, R1S, and R1M models
• Complete MWR velocity stack kit
• Includes upper stacks, lower stacks, and installation bolts
• Designed to improve intake airflow and throttle response
• Race-developed MWR intake design
• OEM-style installation with no airbox modification required
• Ideal for performance builds, exhaust upgrades, and ECU-tuned R1 setups

Fitment