FMF Power Bomb Stainless Steel Header Pipe 045425 for Beta RR and RS 400, 450, 498, and 520

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.

Upgrade the exhaust performance of your compatible Beta four-stroke motorcycle with the FMF Power Bomb stainless steel header pipe, manufacturer part number 045425. Designed for Beta RR and RS models, this header uses FMF’s Power Bomb technology to improve exhaust flow while helping reduce sound output. The precisely positioned expansion chamber creates additional surface area for exhaust absorption, allowing gases to expand, cool, and transition smoothly through the system.

The FMF Power Bomb header is tuned for strong bottom-to-midrange performance and can help deliver increased power throughout the operating range. Its stainless steel construction provides durable performance in demanding off-road conditions, while the design supports full-service access to the oil filter for easier routine maintenance. As a front-running performance header, it is engineered to complement four-stroke exhaust systems without compromising practical serviceability.

Fitment includes 2010 Beta 400 RR; 2011–2013 Beta 400 RR; 2011 Beta 400 RS; 2012–2013 Beta 498 RR; 2010–2011 Beta 520 RR; and 2011 Beta 520 RS. Verify your motorcycle model, year, and exhaust configuration before installation. This FMF Power Bomb header is identified by brand FMF and part number 045425, and is designed specifically for the listed Beta applications.

Features:

• Performance: Tuned to improve bottom-to-midrange four-stroke performance.
• Exhaust Flow: Power Bomb expansion technology helps increase exhaust flow and power across the operating range.
• Sound Reduction: The pre-muffler-style bulge creates added surface area to help absorb and reduce exhaust sound.
• Construction: Made from durable stainless steel for demanding off-road use.
• Service Access: Designed to maintain full access to the oil filter for routine maintenance.
• Fitment: Fits select Beta RR and RS 400, 450, 498, and 520 models from 2010 through 2013.
• Identification: FMF manufacturer and vendor part number 045425.

Fitment:
2010 Beta 400 RR
2010 Beta 450 RR
2010 Beta 450 RS
2010 Beta 450 RS Super Moto
2010 Beta 520 RR
2011 Beta 400 RR
2011 Beta 400 RS
2011 Beta 400 Sm
2011 Beta 450 RR
2011 Beta 450 RS
2011 Beta 450 SM
2011 Beta 520 RR
2011 Beta 520 RS
2011 Beta 520 Sm
2012 Beta 400 RR
2012 Beta 450 RR
2012 Beta 450 RS
2012 Beta 498 RR
2012 Beta 520 RR
2012 Beta 520 RS
2013 Beta 400 RR
2013 Beta 450 RR
2013 Beta 450 RS
2013 Beta 498 RR
2013 Beta 520 RR
2013 Beta 520 RS
2014 Beta 400 RR
2014 Beta 400 RS
2014 Beta 450 RR
2014 Beta 450 RS
2014 Beta 498 RR
2014 Beta 520 RR
2014 Beta 520 RS
2015 Beta 400 RR
2015 Beta 430 RR
2015 Beta 430 RS
2015 Beta 450 RR
2015 Beta 480 RR
2015 Beta 500 RS
2016 Beta 400 RR
2016 Beta 430 RR
2016 Beta 430 RS
2016 Beta 450 RR
2016 Beta 480 RR
2016 Beta 500 RS
2017 Beta 400 RR
2017 Beta 430 RR
2017 Beta 430 RR (RE)
2017 Beta 430 RR-S
2017 Beta 430 RS
2017 Beta 450 RR
2017 Beta 480 RR
2017 Beta 480 RR (RE)
2017 Beta 498 RR
2017 Beta 500 RR-S
2018 Beta 400 RR
2018 Beta 430 RR
2018 Beta 430 RR (RE)
2018 Beta 430 RR-S
2018 Beta 430 RS
2018 Beta 450 RR
2018 Beta 480 RR
2018 Beta 480 RR (RE)
2018 Beta 498 RR
2018 Beta 500 RR-S