The FMF Racing PowerBomb 042385 header is engineered to deliver significant performance enhancements for four-stroke motorcycles. Utilising FMF's patented PowerBomb module, this stainless steel header optimises exhaust flow by strategically placing an expansion chamber at a critical point. The result is increased horsepower and a notable improvement in throttle response, with flow gains approaching 10%. The PowerBomb design also functions as a pre-muffler for reduced sound output and accommodates either stock or FMF mufflers for versatile setup options.

Features

• Closed course use only for maximum performance
• Patented PowerBomb module increases exhaust flow by up to 10%
• Functions as a pre-muffler for reduced sound levels
• Compatible with both stock and FMF mufflers
• Durable stainless steel construction ensures longevity
• Available in specific configurations for tailored power delivery (moto or supercross, depending on model)
• Complies with carburettor warning requirements

Specifications

• Item ID: 042385
• Type: Header
• Header construction: Stainless steel
• Header type: PowerBomb
• Fitment: For use with stock or FMF muffler
• Intended for closed course use only

Vehicle Fitment

Kawasaki

• KLX250 (2018–2020)
• KLX250 CAMO (2018–2020)
• KLX250S (2006, 2009–2010, 2012–2017)
• KLX250SF (2009–2010, 2012)
• KLX300R (2020–2021)