{"product_id":"hgs-exhaust-yamaha-yz125-2005-2021","title":"HGS Exhaust – Yamaha YZ125 (2005-2021)","description":"\u003cdiv style=\"line-height:1.65; color:#111;\"\u003e\n\n\u003cp style=\"font-size:16px; margin:0 0 18px;\"\u003e\nThe HGS Exhaust for the Yamaha YZ125 has been developed through world championship motocross racing to maximise engine performance, throttle response and rideability. Designed specifically for the 2005–2021 Yamaha YZ125, every HGS exhaust is hand-built in the Netherlands using premium-quality steel to deliver stronger acceleration, improved over-rev and smoother power delivery throughout the RPM range.\n\u003c\/p\u003e\n\n\u003cp style=\"font-size:16px; margin:0 0 18px;\"\u003e\nWhether you're racing motocross, training or rebuilding a classic YZ125, the HGS Exhaust delivers race-proven performance with outstanding fit and finish. Trusted by professional MXGP teams around the world, HGS exhaust systems are renowned for their quality, reliability and significant power gains.\n\u003c\/p\u003e\n\n\u003cdiv style=\"background:#f7f7f7; border:1px solid #e5e5e5; border-left:5px solid #e21b23; padding:22px; border-radius:14px; margin:24px 0;\"\u003e\n\n\u003ch3 style=\"margin:0 0 12px; text-transform:uppercase;\"\u003eFitment\u003c\/h3\u003e\n\n\u003cul style=\"margin:0; padding-left:20px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eYamaha YZ125:\u003c\/strong\u003e 2005–2021\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 125cc 2-Stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e HGS Performance Exhaust\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Hand-built Steel Expansion Chamber\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct Bolt-On\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\n\u003ch3 style=\"margin:24px 0 10px; text-transform:uppercase;\"\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eRace-developed HGS exhaust system\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the Yamaha YZ125 (2005–2021)\u003c\/li\u003e\n\u003cli\u003eHand-built steel expansion chamber\u003c\/li\u003e\n\u003cli\u003eImproved throttle response\u003c\/li\u003e\n\u003cli\u003eStronger acceleration and increased over-rev\u003c\/li\u003e\n\u003cli\u003eOptimised power delivery throughout the RPM range\u003c\/li\u003e\n\u003cli\u003ePremium hand-welded construction\u003c\/li\u003e\n\u003cli\u003eHigh-quality racing-grade materials\u003c\/li\u003e\n\u003cli\u003eDirect bolt-on installation with OEM fitment\u003c\/li\u003e\n\u003cli\u003eUsed by championship-winning motocross teams worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"background:#111; color:#fff; padding:24px; border-radius:14px; margin:26px 0;\"\u003e\n\n\u003ch3 style=\"margin:0 0 12px; color:#e21b23; text-transform:uppercase;\"\u003eWhy Choose HGS?\u003c\/h3\u003e\n\n\u003cp style=\"margin:0;\"\u003e\nHGS has earned a worldwide reputation for producing some of the highest-performing motocross exhaust systems available. Every exhaust is developed through professional racing and manufactured by hand to deliver exceptional performance, reliability and precise fitment. The Yamaha YZ125 HGS Exhaust is the perfect upgrade for riders looking to unlock more performance from Yamaha's legendary 125cc two-stroke.\n\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#fff; border:1px solid #ddd; padding:22px; border-radius:14px; margin:24px 0;\"\u003e\n\n\u003ch3 style=\"margin:0 0 10px; text-transform:uppercase;\"\u003eNeed Help Choosing the Right Exhaust?\u003c\/h3\u003e\n\n\u003cp style=\"margin:0;\"\u003e\nContact Progressive Performance for expert advice on HGS exhaust systems, engine tuning and motocross performance upgrades. We'll help you choose the ideal HGS exhaust for your Yamaha YZ125.\n\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HGS","offers":[{"title":"Default Title","offer_id":57047235887482,"sku":"HGYZ12505E","price":284.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/1358\/6810\/files\/6_c24dc258-a6db-40fb-8c1a-674821122872.webp?v=1783366976","url":"https:\/\/progressive-performance.co.uk\/products\/hgs-exhaust-yamaha-yz125-2005-2021","provider":"Progressive-Performance","version":"1.0","type":"link"}