FMF PowerBomb Stainless Steel Header Pipe 042037 for Kawasaki KX250F and Suzuki RM-Z250

The FMF Power Bomb is a four stroke header pipe unit that has a unique bulge precisely located in the header system. A "pre muffler" of sorts, the Power Bomb actually lowers sound output because it creates more surface area to absorb the sound medium (exhaust). The surface area of the perforated core lets the sound exit into the absorbing material (steel wool packing) and then allows the air to expand, cool and ramp back up with the higher pressure air. The result? The FMF Power Bomb is instrumental in reducing the decibel level on any four stroke and because of the expansion and contraction on exhaust through the system, the flow has been increased by nearly 10%. That means more power throughout the range.

Improve four-stroke exhaust performance with the FMF PowerBomb stainless steel header pipe, manufacturer part number 042037 and vendor part number 79-0233. Designed for select Kawasaki KX250F and Suzuki RM-Z250 motorcycles, this PowerBomb header uses a precisely positioned expansion chamber to increase exhaust surface area and improve sound absorption. The result is reduced exhaust noise, smoother flow, and stronger overall performance.

The FMF PowerBomb functions as a pre-muffler within the header system. Its perforated core allows exhaust gases to pass into the packing material, where the gases can expand, cool, and transition back into the higher-pressure exhaust stream. This design can increase exhaust flow by nearly 10 percent while supporting improved power delivery throughout the rev range. The system is tuned specifically for bottom-to-midrange performance, making it a practical upgrade for riders seeking stronger response and usable power.

Designed for serviceability, the header provides full access to the oil filter for routine maintenance. The stainless steel construction offers durable performance in demanding riding conditions. Fitment includes 2004–2008 Kawasaki KX250F and 2004–2006 Suzuki RM-Z250 models. Verify the motorcycle year and model before ordering to ensure proper installation.

Features:

• Performance: Tuned to improve bottom-to-midrange power and throttle response.
• Exhaust flow: PowerBomb expansion design can increase exhaust flow by nearly 10 percent.
• Sound reduction: Increased surface area helps absorb exhaust sound and reduce decibel output.
• Construction: Durable stainless steel header pipe designed for four-stroke motorcycle applications.
• Service access: Designed to provide full access to the oil filter for routine maintenance.
• Fitment: Fits 2004–2008 Kawasaki KX250F and 2004–2006 Suzuki RM-Z250 motorcycles.

Fitment:
2004 Kawasaki KX250F
2004 Suzuki RM-Z250
2005 Kawasaki KX250F
2005 Suzuki RM-Z250
2006 Kawasaki KX250F
2006 Suzuki RM-Z250
2007 Kawasaki KX250F
2008 Kawasaki KX250F