{"product_id":"dogfight-racing-dfr-chamber-nsr250r-1990-1998","title":"Dogfight Racing DFR Chamber – NSR250R (1990–1998)","description":"\u003cp data-start=\"160\" data-end=\"186\"\u003eBuilt from the track up.\u003c\/p\u003e\n\u003cp data-start=\"188\" data-end=\"332\"\u003eThe Dogfight Racing DFR chamber is developed through real racing data—refined on the dyno, proven on the circuit, and validated on the street.\u003c\/p\u003e\n\u003cp data-start=\"334\" data-end=\"501\"\u003eDesigned to extract maximum performance from the NSR250R, it delivers stronger mid-range and extended over-rev, giving the engine more usable power across the range.\u003c\/p\u003e\n\u003chr data-start=\"503\" data-end=\"506\"\u003e\n\u003cp data-start=\"508\" data-end=\"545\"\u003e\u003cstrong data-start=\"508\" data-end=\"519\"\u003eFitment\u003c\/strong\u003e\u003cbr data-start=\"519\" data-end=\"522\"\u003e• NSR250R (1990–1998)\u003c\/p\u003e\n\u003chr data-start=\"547\" data-end=\"550\"\u003e\n\u003cp data-start=\"552\" data-end=\"681\"\u003e\u003cstrong data-start=\"552\" data-end=\"568\"\u003eConstruction\u003c\/strong\u003e\u003cbr data-start=\"568\" data-end=\"571\"\u003e• Stainless steel chamber body\u003cbr data-start=\"601\" data-end=\"604\"\u003e• Aluminium silencer\u003cbr data-start=\"624\" data-end=\"627\"\u003e• Aluminium flanges\u003cbr data-start=\"646\" data-end=\"649\"\u003e• Corrosion-resistant hardware\u003c\/p\u003e\n\u003chr data-start=\"683\" data-end=\"686\"\u003e\n\u003cp data-start=\"688\" data-end=\"821\"\u003e\u003cstrong data-start=\"688\" data-end=\"699\"\u003eDetails\u003c\/strong\u003e\u003cbr data-start=\"699\" data-end=\"702\"\u003e• Exhaust volume: 92 dB\u003cbr data-start=\"725\" data-end=\"728\"\u003e• Bolt-on design – no modification required\u003cbr data-start=\"771\" data-end=\"774\"\u003e• Compatible with Gull-arm and Pro-arm setups\u003c\/p\u003e\n\u003chr data-start=\"823\" data-end=\"826\"\u003e\n\u003cp data-start=\"828\" data-end=\"1007\"\u003e\u003cstrong data-start=\"828\" data-end=\"843\"\u003ePerformance\u003c\/strong\u003e\u003cbr data-start=\"843\" data-end=\"846\"\u003e• Increased mid-range torque\u003cbr data-start=\"874\" data-end=\"877\"\u003e• Improved over-rev characteristics\u003cbr data-start=\"912\" data-end=\"915\"\u003e• Stronger, more usable power across RPM range\u003cbr data-start=\"961\" data-end=\"964\"\u003e• Developed for high-octane unleaded fuel\u003c\/p\u003e\n\u003chr data-start=\"1009\" data-end=\"1012\"\u003e\n\u003cp data-start=\"1014\" data-end=\"1166\"\u003e\u003cstrong data-start=\"1014\" data-end=\"1024\"\u003eDesign\u003c\/strong\u003e\u003cbr data-start=\"1024\" data-end=\"1027\"\u003e• Expansion chamber optimised for maximum output\u003cbr data-start=\"1075\" data-end=\"1078\"\u003e• Built from race data and real-world testing\u003cbr data-start=\"1123\" data-end=\"1126\"\u003e• Durable, rust-resistant construction\u003c\/p\u003e\n\u003chr data-start=\"1168\" data-end=\"1171\"\u003e\n\u003cp data-start=\"1173\" data-end=\"1312\"\u003e\u003cstrong data-start=\"1173\" data-end=\"1187\"\u003eKey Points\u003c\/strong\u003e\u003cbr data-start=\"1187\" data-end=\"1190\"\u003e• Suitable for both track and street use\u003cbr data-start=\"1230\" data-end=\"1233\"\u003e• Maintenance-conscious design\u003cbr data-start=\"1263\" data-end=\"1266\"\u003e• Clean fit with stock bodywork and rearsets\u003c\/p\u003e\n\u003chr data-start=\"1314\" data-end=\"1317\"\u003e\n\u003cp data-start=\"1319\" data-end=\"1473\"\u003e\u003cstrong data-start=\"1319\" data-end=\"1328\"\u003eNotes\u003c\/strong\u003e\u003cbr data-start=\"1328\" data-end=\"1331\"\u003e• Designed for JDM – road compliance may vary\u003cbr data-start=\"1376\" data-end=\"1379\"\u003e• Specifications may change without notice\u003cbr data-start=\"1421\" data-end=\"1424\"\u003e• Instructions (if included) may be in Japanese\u003c\/p\u003e\n\u003chr data-start=\"1475\" data-end=\"1478\"\u003e\n\u003cp data-start=\"1480\" data-end=\"1504\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eProven where it matters.\u003c\/p\u003e","brand":"Dogfight","offers":[{"title":"Default Title","offer_id":52808487665943,"sku":"W-1644-002","price":2283.95,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0700\/9343\/9255\/files\/Untitled-2-2026-04-18T095845.300.png?v=1776463137","url":"https:\/\/bushidomotorcycles.nz\/products\/dogfight-racing-dfr-chamber-nsr250r-1990-1998","provider":"Bushido Motorcycles","version":"1.0","type":"link"}