RPM PLUMAGE Full Exhaust System

JMCA Certified – 4-2-1 Design

Kawasaki ZXR400 (1991–1999) / ZXR400R (1991–1999)

Steel craftsmanship. Mid-range torque. Proper 400 sound.

The RPM Plumage Full Exhaust System is engineered around a true 4-2-1 configuration to deliver strong, usable torque in the mid to low RPM range — exactly where a street-driven ZXR400 benefits most.

JMCA certified and built using RPM’s original manufacturing process, this system balances performance, tone and craftsmanship.

Construction

• Full exhaust system
• Steel exhaust pipework (engine port to silencer)
• Multi-stage polishing process
• Copper plated → Nickel plated → Hard chromed finish
• Steel plated tail section
• Aluminium silencer cover
• Φ93 large-capacity silencer
• Spring-assembled construction
• Proximity exhaust noise: 91 dB

The plated steel produces a distinctive luster unique to this material. With heat cycles, the pipe develops the characteristic burnt coloration expected from quality steel exhaust systems.

The exhaust note is strong yet refined — powerful without harshness.

Performance Characteristics

• 4-2-1 layout for strong mid to low RPM torque
• Improved throttle response
• Large-capacity Φ93 silencer for efficient exhaust flow
• Designed for balanced street performance

This is not a cosmetic system — it is engineered for usable torque delivery.

Fitment

Kawasaki ZXR400 — 1991–1999
Kawasaki ZXR400R — 1991–1999

Additional Information

• JMCA Certified
• Oil change: Not supported
• Oil filter change: Not supported
• Pillion use: Not supported
• KITACO exhaust gasket recommended
• Images for reference only
• Instructions (if included) may be in Japanese

Polished steel. Proper 4-2-1 torque curve.
Built for the era when 400cc meant precision.

Bushido Motorcycles — NZ.