{"product_id":"moto-house-mx-power-up-kit-pro-circuit-rv-works-pipe-r-304-vforce-4r-kit-2005-2026-yamaha-yz125-yz125x","title":"Moto-House MX Power-Up Kit - Pro Circuit RV Works Pipe R-304 VForce 4R Kit 2005-2026 Yamaha YZ125 YZ125X","description":"\u003ch3\u003eThe Ryan Villopoto Spec: Championship Power for the People\u003c\/h3\u003e\n\u003cp\u003eWhen you think of Motocross, everyone loves the sound and smells of a 2-stroke. There is no better feeling than that raw power when the powerband hits, and the Yamaha YZ125 and YZ125X remain the gold standard for flickable, high-revving fun. However, keeping these bikes competitive against modern machinery requires a professional edge. Moto-House MX understands that we need to keep these bikes fun while maximizing their power delivery. That is why we’ve curated this Power-Up Kit around the Ryan Villopoto spec Works Pipe—a setup designed for a multi-time champion that can now be bolted directly onto your YZ125 for Heavy Duty Racing Performance.\u003c\/p\u003e\n\u003cp\u003eThis kit is engineered to be significantly stronger from the bottom to the middle of the powerband, making it a lethal weapon on tighter, softer tracks where acceleration out of corners is the difference between winning and losing. By pairing the RV-spec pipe with the aggressive \"bark\" of the R-304 Silencer and the VForce 4R Reed Valve system, we’ve increased total airflow by 10.5%. Combined with the flow-bench proven Twin Air dual-bonded foam filter, this package ensures your YZ125 isn't just breathing; it’s screaming. From the hand-welded seams of the AKDQ carbon steel pipe to the precision engineering of the carbon fiber reeds, this is the first step in turning your Yamaha into a surgical racing tool.\u003c\/p\u003e\n\u003ch3\u003eTop Features: Moto-House MX YZ125 RV Power-Up Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePro Circuit RV Works Pipe:\u003c\/b\u003e Ryan Villopoto spec pipe designed for massive gains in bottom-to-mid transition and gate-drop acceleration. (#PY05125-RV)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePro Circuit R-304 Silencer:\u003c\/b\u003e Compact 6061 T-6 aluminum \"Shorty\" design for optimum performance gains and that signature race sound. (#SY02125-RE)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVForce 4R Reed System:\u003c\/b\u003e Features a 15.6% reduced frontal area and an aerodynamic central wing for lightning-fast air velocity. (V4R04)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTwin Air Standard Filter:\u003c\/b\u003e Dual-bonded foam design that filters out the smallest particles while increasing dead air space for better intake. (#152213)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAKDQ Carbon Steel:\u003c\/b\u003e High-quality stamped construction with reinforced mounting brackets for rugged, long-lasting durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMade in the USA:\u003c\/b\u003e Professional-grade components manufactured and tested in the United States for maximum quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eExpert Pro-Tip:\u003c\/strong\u003e The RV-spec pipe is designed for torque; if you find yourself wheeling too much out of corners, try clicking up a gear earlier to let that mid-range pull really go to work.\u003c\/p\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\" cellpadding=\"8\" border=\"1\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eVehicle Brand\u003c\/th\u003e\n\u003cth\u003eVehicle Model \u0026amp; Size\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2005 - 2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2020 - 2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ125X (Cross Country)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: How is the RV Pipe different from the standard Works Pipe?\u003c\/b\u003e\u003cbr\u003eA: The RV (Ryan Villopoto) spec is specifically tuned for more bottom-end and mid-range grunt, whereas the standard pipe is more of a balanced, all-around power curve.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Do the VForce 4R reeds last longer than stock?\u003c\/b\u003e\u003cbr\u003eA: Yes. The 4R system includes rubber overmolding on the reed tip surface and long reed stops to slow petal velocity, significantly extending the life of the carbon fiber.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: Is this kit easy to install?\u003c\/b\u003e\u003cbr\u003eA: Absolutely. This is a direct bolt-on kit. The Twin Air filter is even slightly smaller than stock to make airbox swaps faster and easier during race days.\u003c\/p\u003e\n\u003cp\u003eUpgrade your YZ125 today and feel the difference that a championship-grade Power-Up Kit makes! Buy now at Moto-House MX.\u003c\/p\u003e\n\u003cp\u003eStop by our local store in Montverde, FL or lightning-fast shipping across the USA.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMoto-House MX – Choice of Champions\u003c\/b\u003e – is located in Clermont\/Montverde, FL. The Best Motocross\/UTV \u0026amp; ATV Shop in Central Florida.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Moto-House MX","offers":[{"title":"Default Title","offer_id":44531046023251,"sku":"MH-0526-YZ125RV-PCVF","price":734.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/Power-Up_Package_YZ125_2003-2026_Yamaha_YZ125.png?v=1777162299","url":"https:\/\/motohousemx.com\/products\/moto-house-mx-power-up-kit-pro-circuit-rv-works-pipe-r-304-vforce-4r-kit-2005-2026-yamaha-yz125-yz125x","provider":"Moto-House MX","version":"1.0","type":"link"}