Norifumi Noctus Exhaust for Yamaha Aerox 155

Tired of the quiet, restrictive stock exhaust limiting your maxi-scooter's potential on the open road? Upgrade to the Norifumi Noctus Matic Full System to unlock sharper throttle response, reduced weight, and a commanding exhaust note.

Key Benefits

• Enhanced Engine Flow: Optimized pipe routing maximizes scavenging efficiency for improved low-end torque and mid-range acceleration.

• Weight Reduction: High-grade stainless steel and lightweight accents significantly shed unsprung weight compared to the bulky factory system.

• Acoustic Tuning: Produces a bass-heavy, resonant exhaust tone without excessive highway drone.

• Corrosion Resistance: Specially coated exterior resists rust, heat discoloration, and road debris impact.

• Direct Bolt-On Fit: Precision-bent header pipe integrates smoothly with factory mounting points without frame modifications.

Technical Specifications

Compatibility & Installation

• Fitment: Engineered specifically for the Yamaha Aerox 155 platform (NVX 155).

• Step 1: Allow the engine to cool, then loosen and remove the stock exhaust manifold nuts and chassis mounting bolts.

• Step 2: Inspect and replace the exhaust port gasket to ensure an airtight seal.

• Step 3: Mount the Norifumi header pipe loosely to the exhaust port.

• Step 4: Align the silencer canister with the chassis bracket, fit the retention springs, and torque all hardware evenly to factory specs.

What’s in the Box

• 1x Norifumi Noctus Silencer Canister

• 1x Stainless Steel Tuned Header Pipe

• 1x Mounting Bracket & Hardware Kit

• 2x Exhaust Tension Springs

• 1x Removable DB Killer / Baffle

Does the Norifumi Noctus exhaust require ECU remapping on the Aerox 155?

No ECU remapping is mandatory for standard street riding, as the stock fuel injection adapts to the improved airflow. However, an aftermarket ECU or fuel tuner will maximize peak horsepower gains.

Is the Norifumi Noctus exhaust legal for road use?

The exhaust includes a removable DB killer to keep sound output within moderate street levels. Removing the baffle significantly increases sound volume and is intended for closed-course or track use.

Does installing this exhaust void my Yamaha warranty?

Slip-on or full exhaust modifications generally do not affect overall vehicle warranty unless a specific engine failure is directly proven to be caused by the exhaust modification. Check with your local authorized dealer.

What performance gains can I expect on a Yamaha Aerox 155?

Riders typically experience a noticeable boost in low-to-mid throttle response, smoother acceleration through the CVT powerband, and a nominal increase of 0.8–1.5 hp.

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