{"product_id":"25-300bk-high-volume-fuel-pressure-regulator-for-honda-1999-2000-civic-si-1-6l","title":"25-300BK High Volume Fuel Pressure Regulator for Honda 1999-2000 Civic Si 1.6L","description":"\u003ch2\u003eHigh Volume Fuel Pressure Regulator for Honda\u003c\/h2\u003e\u003cp\u003eThis 25-300BK High Volume Fuel Pressure Regulator for Honda 1999-2000 Civic Si 1.6L is an aftermarket replacement designed to maintain a stable fuel pressure in the fuel rail, ensuring optimal air-fuel mixture for engine performance. It is built for the 1999-2000 Honda Civic Si with the 1.6L engine, providing a higher flow capacity than stock for modified fuel systems.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis high volume fuel pressure regulator is a bolt-on replacement for the stock regulator on your Honda Civic Si, delivering consistent fuel pressure under high-demand conditions. It is specifically for the 1999-2000 Civic Si 1.6L, handling increased fuel flow from upgraded pumps and injectors. The 25-300BK regulator ensures your engine gets the fuel it needs for reliable power delivery.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHigh-volume design supports aftermarket fuel pump and injector upgrades.\u003c\/li\u003e\n\u003cli\u003ePrecision-machined aluminum body resists corrosion and withstands high pressure.\u003c\/li\u003e\n\u003cli\u003eAnodized black finish for durability and a clean appearance.\u003c\/li\u003e\n\u003cli\u003eAdjustable pressure settings for fine-tuning air-fuel ratios.\u003c\/li\u003e\n\u003cli\u003eIncludes a vacuum reference port for accurate pressure regulation under load.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Honda 1999-2000 Civic Si 1.6L\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIdeal for track days or spirited street driving where consistent fuel delivery is critical.\u003c\/li\u003e\n\u003cli\u003eUsed in turbocharged or supercharged builds to manage higher fuel demand.\u003c\/li\u003e\n\u003cli\u003eSuitable for daily-driven Civic Si models with stock engines requiring a reliable regulator.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25-300BK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh Volume Fuel Pressure Regulator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Engine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.6L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack Anodized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this regulator work with my stock Civic Si fuel system? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it will operate with a stock system but is designed to handle higher flow rates. It is a direct replacement for the factory regulator on the 1999-2000 Civic Si.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this regulator require adjustment before installation? \u003cstrong\u003eA:\u003c\/strong\u003e It comes with a baseline pressure setting, but for custom builds you may need to adjust the spring tension to match your fuel pressure requirements. Using a fuel pressure gauge is recommended during setup.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Part Outfitters","offers":[{"title":"Default Title","offer_id":46610515951802,"sku":"ZZ3F09138","price":101.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/2476\/1786\/files\/s-l1600_6e469c3d-1b53-4475-ba45-810eff4fb8e6.jpg?v=1789000686","url":"https:\/\/partoutfitters.com\/products\/25-300bk-high-volume-fuel-pressure-regulator-for-honda-1999-2000-civic-si-1-6l","provider":"Part Outfitters","version":"1.0","type":"link"}