Naraku crossover exhaust for QMB139 50cc — full view showing black header pipe and real carbon fiber silencer Naraku crossover exhaust for QMB139 50cc — full view showing black header pipe and real carbon fiber silencer
Naraku QMB139 exhaust head pipe flange — 50mm bolt hole spacing, 20mm inner diameter Naraku QMB139 exhaust head pipe flange — 50mm bolt hole spacing, 20mm inner diameter
Naraku crossover exhaust for QMB139 50cc — full view showing black header pipe and real carbon fiber silencer
Naraku QMB139 exhaust head pipe flange — 50mm bolt hole spacing, 20mm inner diameter

Naraku

Naraku Carbon Fiber Crossover Exhaust System | 139QMB 50cc

SKU 137-5
$199.00
Shipping calculated at checkout.
Description

The Naraku Crossover Exhaust is a performance-oriented replacement exhaust tailored specifically to the QMB139 4-stroke 50cc engine. The crossover pipe design targets top-end power gains over the stock exhaust, while the real carbon fiber silencer keeps the look clean and stealthy. Designed to European road standards — removing the manifold restrictor delivers a significant additional performance improvement.

Key Features

  • Crossover pipe design for top-end performance boost over stock
  • Real carbon fiber silencer with black finish
  • Removable silencer for maintenance or tuning
  • Designed to European road standards
  • Removing the manifold restrictor significantly improves performance
  • Does not include mounting bolts

Specifications

  • Head Pipe Bolt Hole Spacing: 50mm
  • Head Pipe Inner Diameter: 20mm
  • Silencer: Real carbon fiber, removable
  • Finish: Black
  • Mounting Bolts: Not included

Compatibility

Engine Displacement Type
QMB139 49cc / 50cc 4-stroke horizontal

This product is intended for off-road and racing use only. Not intended for use on public roads.

California Prop 65 Warning: www.p65warnings.ca.gov
Product Diagrams
Features
  • Crossover pipe design for top-end performance boost over stock
  • Real carbon fiber silencer with black finish
  • Removable silencer for maintenance or tuning
  • Designed to European road standards
  • Removing the manifold restrictor significantly improves performance
  • Does not include mounting bolts
Specifications

Head Pipe Bolt Spacing: 50mm | Head Pipe ID: 20mm | Silencer: Real carbon fiber, removable | Finish: Black | Mounting Bolts: Not included
Model Fitments

QMB139 49cc/50cc 4-stroke horizontal engine
  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period on eligible items
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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