{"product_id":"moto-house-power-up-kit-pro-circuit-2003-2026-yamaha-yz250-yz250x","title":"Moto-House Power-Up Kit - Pro Circuit 2003-2026 Yamaha YZ250 YZ250X","description":"\u003ch3\u003eThe Ultimate YZ250 Power Up Kit\u003c\/h3\u003e\n\u003cp\u003eIf you’re still riding a Yamaha YZ250, congratulations—you own the last of the Mohicans. But let’s be honest: while the blue smoker is a timeless masterpiece, the stock pipe and reeds are beginning to feel a bit like yesterday’s news. If you want to stop getting roosted by modern four-strokes and start barkin’ off the gate, you need the Moto-House MX Power Up Kit. This isn’t just a box of parts; it’s a direct injection of adrenaline and \"Works\" performance designed to make your YZ250 run as good as it looks. Moto-House MX curated this specific Heavy Duty combo to ensure you get more over-rev and crisper throttle response.\u003c\/p\u003e\n\u003cp data-path-to-node=\"2\"\u003eThis kit centers around the Pro Circuit Works Champ Pipe—the unplated, oiled-metal masterpiece that screams \"I know how to use a Scotch-Brite pad.\" Paired with the shorty R-304 Silencer, you aren’t just gaining horsepower; you’re gaining \u003cb data-path-to-node=\"2\" data-index-in-node=\"238\"\u003eRacing Performance\u003c\/b\u003e that is flow-bench proven. We’ve included the VForce 4X Reed Valve to eliminate the lag in your low-end and the Twin Air dual-bonded filter to ensure the only thing your motor breathes is clean, high-velocity oxygen. It’s lightweight, rugged, and built for those who treat the track like a battlefield.\u003c\/p\u003e\n\u003chr data-path-to-node=\"3\"\u003e\n\u003ch3 data-path-to-node=\"4\"\u003ePerformance Gains: What to Expect\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003e\n\u003cb data-path-to-node=\"5,0,0\" data-index-in-node=\"0\"\u003eBroad Powerband:\u003c\/b\u003e Noticeable horsepower and torque gains that pull significantly harder from the bottom and scream through the top-end.\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,0,0\"\u003e\n\u003cb data-path-to-node=\"5,1,0\" data-index-in-node=\"0\"\u003eInstant Throttle Response:\u003c\/b\u003e The VForce 4X reed system eliminates \"lag\" and low-end bog for a more connected feel between your wrist and the rear tire.\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,2,0\"\u003e\n\u003cb data-path-to-node=\"5,2,0\" data-index-in-node=\"0\"\u003eEnhanced Over-Rev:\u003c\/b\u003e The Pro Circuit Works pipe allows the motor to breathe deeper, letting you stay in each gear longer before hitting the wall.\u003c\/li\u003e\n\u003cli data-path-to-node=\"5,3,0\"\u003e\n\u003cb data-path-to-node=\"5,3,0\" data-index-in-node=\"0\"\u003eMaximum Air Intake:\u003c\/b\u003e Flow-bench proven VForce 4X reed systems combined with Twin Air technology ensures your engine isn't suffocating, even in the deepest loam or sand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"6\"\u003e\n\u003ch3\u003eTop Features: Moto-House MX Yamaha YZ250 Power Up Kit\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-path-to-node=\"8,0,0\"\u003e\n\u003cstrong\u003eWorks Champ Pipe - 0732525\u003cspan style=\"font-size: 0.875rem;\"\u003e:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e Increased horsepower and torque across the entire RPM range with an unplated \"Works\" finish for maximum style.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,1,0\"\u003e\n\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eR-304 Shorty Silencer - SY03250-RE:\u003c\/b\u003e Compact aluminum canister designed for optimum gains and a distinct, aggressive race bark.\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,2,0\"\u003e\n\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eVForce 4X Reed System - V4X07EM:\u003c\/b\u003e All-new reed petal resin system that significantly improves throttle response and bottom-end pull.\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,3,0\"\u003e\n\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eTwin Air Dual-Bonded Filter - 152213X:\u003c\/b\u003e Two layers of foam fused together to trap the smallest particles while increasing airflow.\u003c\/li\u003e\n\u003cli data-path-to-node=\"8,4,0\"\u003e\n\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eEasy Maintenance:\u003c\/b\u003e The R-304 features hex head screws for quick repacking, and the Twin Air filter is sized for easier airbox swaps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment List\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\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\u003ctr\u003e\n\u003ctd\u003e2003 - 2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2016 - 2026\u003c\/td\u003e\n\u003ctd\u003eYamaha\u003c\/td\u003e\n\u003ctd\u003eYZ250X\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\u003cstrong\u003eQ: Does the \"Works\" finish on the pipe require special care?\u003c\/strong\u003e\u003cbr\u003eA: Yes. Because it is unplated, you should spray it with a light coat of WD-40 or similar penetrant after washing to prevent surface rust.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the R-304 Silencer spark arrested for trail riding?\u003c\/strong\u003e\u003cbr\u003eA: No. The R-304 is a closed-course racing silencer designed for maximum performance gains.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Do I need to re-jet my carburetor after installing this kit?\u003c\/strong\u003e\u003cbr\u003eA: Most riders find that stock jetting is a great baseline, but slight air screw adjustments are recommended to tune for the increased airflow.\u003c\/p\u003e\n\u003cp data-path-to-node=\"15\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"15\"\u003e✨Jetting Note:\u003c\/b\u003e To play it safe, we suggest starting with your \u003cb data-index-in-node=\"61\" data-path-to-node=\"15\"\u003eStock Jetting (Main: 178 | Pilot: 50 | Needle: N3EW | Clip: 2nd | Air Screw: 1.0 | Power Jet: 50)\u003c\/b\u003e. However, for peak performance with this pipe, Pro Circuit recommends the following \u003cb data-index-in-node=\"243\" data-path-to-node=\"15\"\u003eRace Specs: Main: 175 | Pilot: 48 | Needle: N3EW | Clip: 2nd | Air Screw: 1.5 | Power Jet: 50 | Slide: 7.0.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUpgrade Your YZ250 today \u003c\/strong\u003eand feel the difference that a professional-grade Power Up Kit makes! You can also add cylinder \u0026amp; head work at a later time and this kit will perform even better.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMoto-House MX – Choice of Champions\u003c\/strong\u003e – is located in Clermont\/Montverde, FL. The best motocross shop in Central Florida.\u003c\/p\u003e","brand":"Moto-House MX","offers":[{"title":"Default Title","offer_id":44326765559891,"sku":null,"price":761.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1754\/5421\/files\/Power-Up_Package_2003-2026_Yamaha_YZ250.png?v=1777158284","url":"https:\/\/motohousemx.com\/products\/moto-house-power-up-kit-pro-circuit-2003-2026-yamaha-yz250-yz250x","provider":"Moto-House MX","version":"1.0","type":"link"}