IRC Blipper HUSQVARNA 401

IRC Up- and Downshift Blipper/Quickshifter

When downshifting, the IRC control unit delivers a gear- and RPM-dependent throttle blip, eliminating the need to use the clutch when shifting down.

The IRC shift sensor, designed for both push and pull directions, also sends the necessary signal for the factory ECU’s quickshifter functionality.

All key parameters can be adjusted individually:

• Shift pressure for upshifts
• Shift pressure for downshifts
• Blip duration (time)
• Blip threshold (trigger force)
• Sensor direction: push / pull

These settings can be tailored for the intended use (e.g. road or racetrack) as well as the leverage and geometry of the rearset configuration.

The installation kit, including pre-assembled wiring harness and linkage hardware, is fully plug-and-play and fits any rearset with minimal modifications – even in setups with reverse shifting.

No road approval (no ABE)
2-year manufacturer warranty

Installation notice

IRC components interface directly with your motorcycle’s engine management and sensor systems. Installed correctly, they deliver reliable performance for years — so here is what matters most.

Installation should be carried out by an experienced mechanic who is confident working with the electronic components of modern motorcycles:

• Ignition coils
• Throttle position sensor (TPS)
• Gear position sensor
• Throttle grip / twist grip sensor
• Demand sensor
• Fuel injectors

Equally important during installation:

• Work carefully — seat all connectors fully, keep contacts dry and corrosion-free, observe torque values.
• Mind the cable management — route wiring free of chafing with sufficient slack, away from hot and moving parts, and secure it properly.
• Follow the IRC installation instructions — sequence, pin assignment and operating parameters are product-specific.
• Be able to read fault codes — most irregularities after a modification can be narrowed down within minutes.

A solid understanding of the rest of the motorcycle’s electronics and of how the components interact is just as valuable. If you are unsure, have the installation done by a specialist workshop or an experienced racing mechanic — and feel free to contact us with technical questions.

These products are intended exclusively for racing and track use and are not approved for use on public roads. Damage caused by improper installation, deviating settings or inadequate cable management is excluded from the manufacturer’s warranty.

Warranty conditions

This product is covered by the international warranty conditions of IRC S.r.l.

Download the IRC international warranty conditions (PDF)