{"product_id":"performance-series-4-inch-aluminum-slip-on-exhaust","title":"Performance Series 4-Inch Aluminum Slip-On Exhaust","description":"The HMF Performance Series slip-on exhaust system is engineered to enhance the performance of Yamaha YFZ450R and YFZ450X models from 2009-2021. This exhaust system is favored by both professional racers and recreational riders seeking improved performance from their ATVs.\n\nConstructed with a single 4-inch aluminum silencer, this slip-on exhaust is designed to deliver a significant increase in sound and tone compared to the stock system. The performance series features an unrestricted core that allows for maximum flow, contributing to an approximate 5 hp and 3 ft-lbs gain in power and torque, distributed evenly throughout the power curve. The system is substantially lighter than the original equipment, improving overall vehicle dynamics.","brand":"HMF","offers":[{"title":"Default Title","offer_id":52688675930424,"sku":"041413606071","price":399.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/664205516.jpg?v=1784892678","url":"https:\/\/store.motormia.co\/products\/performance-series-4-inch-aluminum-slip-on-exhaust","provider":"MOTORMIA","version":"1.0","type":"link"}