When designing the PowerCore 4 HEX, we looked at our top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank. The FMF PowerCore 4 HEX Beta exhaust muffler is engineered to deliver race-inspired performance at an accessible price point. Designed with top-tier features, this muffler enhances your motorcycle's overall power and torque, providing a noticeable boost in both acceleration and top-end performance. Crafted from durable stainless steel and lightweight aluminum, it ensures long-lasting durability even under rigorous riding conditions. The internal construction utilizes Space Age packing material for maximum longevity, reducing the need for frequent replacements and maintaining optimal performance over time.Built with Hi-Flo technology, the internal shape of the core promotes efficient airflow and sonic evacuation. This results in higher exhaust flow rates, which translate into increased horsepower and improved throttle response. The muffler is also equipped with a removable spark arrestor, making it suitable for various riding environments, including trail and off-road use. Compatibility with FMF or stock OEM headers makes installation straightforward, ensuring a perfect fit for your Beta motorcycle. Whether you're upgrading for racing or recreational riding, the PowerCore 4 HEX offers a cost-effective way to boost your bike's performance while maintaining rugged durability and a sleek appearance.Designed specifically for models including the 2011-2016 Beta 350 RR, 2010-2013 Beta 400 RR, and 2010 Beta 450 RR, this muffler is a versatile upgrade that enhances your riding experience. Its compact design and advanced internal features make it a reliable choice for riders seeking to maximize their bike’s potential without sacrificing quality or affordability. Trust the FMF PowerCore 4 HEX Beta to deliver consistent performance and durability across a range of riding conditions and terrains.Features:Overall increase in power and torqueDurable stainless steel and aluminum constructionSpace Age internal packing material for maximum longevityInternal shape of core uses Hi-Flo technologyEnhanced sonic evacuation provides for higher flow and increased powerIncludes removable spark arrestorCan be used with FMF or stock OEM header Fits, Beta 350 RR 2011 Beta 350 RR (RE) 2017 Beta 350 RR (RE) 2018 Beta 350 RR 2012 Beta 350 RR 2013 Beta 350 RR 2014 Beta 350 RR 2015 Beta 350 RR 2016 Beta 350 RR 2017 Beta 350 RR 2018 Beta 400 RR 2010 Beta 400 RR 2011 Beta 400 RR 2012 Beta 400 RR 2013 Beta 400 RR 2014 Beta 430 RR 2016 Beta 430 RR (RE) 2017 Beta 430 RR (RE) 2018 Beta 430 RR 2015 Beta 430 RR 2017 Beta 430 RR 2018 Beta 430 RS 2016 Beta 430 RS 2015 Beta 450 RR 2012 Beta 450 RR 2010 Beta 450 RR 2011 Beta 450 RR 2013 Beta 450 RR 2014 Beta 480 RR (RE) 2017 Beta 480 RR (RE) 2018 Beta 480 RR 2015 Beta 480 RR 2016 Beta 480 RR 2017 Beta 480 RR 2018 Beta 498 RR 2012 Beta 498 RR 2013 Beta 498 RR 2014 Beta 520 RR 2010 Beta 520 RR 2011