Dogfight Racing Stainless Steel Chamber Set – NSR-CHS-002

Honda NSR250R

High-performance chamber system from Dogfight Racing developed through real race competition in Japan.

The DFR chamber is used in the SP250 class of the Kanto Championship and other regional championships, with its design refined through extensive dyno development and race testing.

The chamber uses the same shape, materials, and construction techniques as those used in actual racing environments, delivering strong mid-range performance and excellent over-rev characteristics.

Construction

• Stainless steel expansion chamber body
• Carbon fibre silencer
• 0.8 mm stainless steel construction
• Hand-built chamber design
• Ring-cut welded construction for strength and accuracy

The stainless steel material provides excellent corrosion resistance while maintaining a high quality finish and long service life.

Design Features

• Straight chamber design prioritising exhaust efficiency
• Minimal bend angles for improved gas flow
• Aluminium flange with heat-resistant O-ring for improved sealing
• Stainless steel fasteners to prevent corrosion
• Carbon silencer for reduced weight

Each chamber is manufactured using dedicated assembly jigs to maintain precise fitment and alignment.

Performance

Developed through extensive circuit testing and road testing, the DFR chamber improves:

• Mid-range torque
• Over-rev characteristics
• Overall throttle response

Designed for use from street riding through to track applications.

Specifications

• Manufacturer Part Number: NSR-CHS-002
• Product Code: W-1644-P41944342
• Material: Stainless steel chamber body
• Silencer: Carbon
• Approximate exhaust volume: 92 dB

Fitment

Honda NSR250R

Important Information

• Images shown are for reference only
• Product specifications may change without notice
• Instructions (if included) may be written in Japanese
• The right-side chamber may contact a stock under cowl — trimming or spacing may be required

Developed from real racing experience and engineered for strong performance across the rev range.

Bushido Motorcycles – NZ.