Performance: 20% +HP increase with open airbox & performance air filter, 24% with Velocity IntakeExcellent throttle response, unbeatable mid-range and over-rev power. Spiral Core design: More Power / Less Noise, 1.875 inch spiral perforated core for better sound dissipation in a wide open design. That equals maximum power gains with less noise than [...]
Posts Tagged ‘Spiral’
04-09 Yamaha YFZ450 Spiral Core Full Exhaust System
Posted by on March 15th, 2010
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