{"product_id":"csf-billet-manifold-accessories-nitrous-adapter-plugs-second-fuel-rail-kit","title":"CSF Nitrous Adapter Plugs \u0026 Second Fuel Rail Kit – BMW B58 \/ S58 Billet Manifolds","description":"\u003cstyle\u003e.sl-desc h2{font-size:1.15em;letter-spacing:.06em;text-transform:uppercase;border-bottom:2px solid #111;padding-bottom:6px;margin:1.6em 0 .7em}.sl-desc h3{font-size:1em;margin:1.2em 0 .4em}.sl-desc ul{margin:0 0 1em 1.2em}.sl-desc li{margin:.25em 0}.va-table{width:100%;border-collapse:collapse;margin:.5em 0 1em;font-size:.95em}.va-table th{text-align:left;padding:10px 8px;border-bottom:2px solid #333;white-space:nowrap}.va-table td{padding:8px;border-bottom:1px solid #e5e5e5;vertical-align:top}.sl-note{font-size:.9em;color:#555;margin:.4em 0 1em}\u003c\/style\u003e\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eTwo CSF accessories for its billet B58 and S58 manifolds. The Nitrous Jet Fitting Adaptor Plugs (#8403) are based on CSF's injector plugs but are internally threaded for a 5\/16-24 jet fitting, so nitrous, methanol or water can be injected straight into each runner without a separate nozzle. They fit every CSF B58 and S58 manifold injector bung.\u003c\/p\u003e\n\u003cp\u003eThe Second Fuel Rail Kit (#8404) adds a second top-feed rail to the CSF \"No Limit\" air-to-air manifolds (#8401 B58 and #8402 S58), taking them from six to twelve port injectors for dual port injection. It uses the same -8 ORB fitting as the primary rail and can be run as a return or returnless system.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e#8403: set of six adaptor plugs, one per runner\u003c\/li\u003e\n\u003cli\u003e#8403: internal 5\/16-24 thread; accepts Nitrous Express Plate Jet Fitting (NX 16149) or VXL Nozzle (NX 80019), or any 5\/16-24 fitting\u003c\/li\u003e\n\u003cli\u003e#8403: anodized black finish\u003c\/li\u003e\n\u003cli\u003e#8403: fits all CSF B58 and S58 manifolds (#8200, #8233, #8300, #8400, #8401, #8402)\u003c\/li\u003e\n\u003cli\u003e#8404: CNC-machined 6061 billet aluminum fuel rail, made by Custom Plenum Creations in Australia\u003c\/li\u003e\n\u003cli\u003e#8404: adds six top-feed port injectors (12 total with the primary rail)\u003c\/li\u003e\n\u003cli\u003e#8404: same -8 ORB fitting as the primary rail; return or returnless setup\u003c\/li\u003e\n\u003cli\u003e#8404: fits CSF #8401 and #8402 only\u003c\/li\u003e\n\u003cli\u003e2-year warranty to the original purchaser under normal use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e#8403: six adaptor plugs with O-rings\u003c\/li\u003e\n\u003cli\u003e#8404: second fuel rail, mounting hardware and a -8 ORB plug for returnless setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003ch3\u003eAdditional Parts Required\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA compatible CSF billet manifold.\u003c\/strong\u003e #8404 fits only the \u003ca href=\"\/products\/csf-no-limit-billet-air-to-air-competition-manifold-bmw-b58-s58\"\u003eCSF \"No Limit\" Air-to-Air Manifold (#8401\/#8402)\u003c\/a\u003e. #8403 also fits the \u003ca href=\"\/products\/csf-charge-air-cooler-manifold-toyota-supra-bmw-g20-m340i-b58-8200\"\u003e#8200 B58 Gen 2\u003c\/a\u003e, \u003ca href=\"\/products\/csf-g8x-m2-m3-m4-s58-charge-air-cooler-manifold-8233\"\u003e#8233 S58\u003c\/a\u003e, \u003ca href=\"\/products\/csf-high-performance-charge-air-cooler-manifold-gen-1-b58-3-0l\"\u003e#8300 B58 Gen 1\u003c\/a\u003e and \u003ca href=\"\/products\/csf-bmw-gen-2-b58-race-x-charge-air-cooler-manifold\"\u003e#8400 Race X\u003c\/a\u003e manifolds.\u003c\/li\u003e\n\u003cli\u003e#8403: 5\/16-24 jet fittings (e.g. NX 16149 or NX 80019) and the nitrous, methanol or water injection system, sold separately.\u003c\/li\u003e\n\u003cli\u003e#8404: six port injectors, fuel feed plumbing and a supporting tune, sold separately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCSF does not publish a downloadable installation PDF for these parts. They install into the CSF manifold's injector bungs and fuel rail mounts.\u003c\/li\u003e\n\u003cli\u003eInstallation should be done by an experienced technician familiar with port injection and nitrous\/methanol systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe table below lists the BMW vehicles CSF fits the \"No Limit\" manifolds to. #8403 also fits any vehicle running one of the other CSF manifolds listed above; check that manifold's listing for its fitment.\u003c\/li\u003e\n\u003cli\u003eNitrous, methanol and water injection are intended for off-road and competition use.\u003c\/li\u003e\n\u003cli\u003eToyota GR Supra owners running a compatible CSF manifold: \u003ca href=\"\/pages\/contact-us\"\u003econtact Speed Logic\u003c\/a\u003e to order.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e8403\u003c\/strong\u003e — Nitrous Jet Fitting Adaptor Plugs (qty 6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8404\u003c\/strong\u003e — Second Fuel Rail Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable class=\"va-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM240i\u003c\/td\u003e\n\u003ctd\u003eG42\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2023+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM240i xDrive\u003c\/td\u003e\n\u003ctd\u003eG42\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2022+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM340i\u003c\/td\u003e\n\u003ctd\u003eG20\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020–2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM340i xDrive\u003c\/td\u003e\n\u003ctd\u003eG20\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020–2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i\u003c\/td\u003e\n\u003ctd\u003eG22 \/ G23\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021–2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i xDrive\u003c\/td\u003e\n\u003ctd\u003eG22 \/ G23\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021–2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i Gran Coupe\u003c\/td\u003e\n\u003ctd\u003eG26\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2022–2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i xDrive Gran Coupe\u003c\/td\u003e\n\u003ctd\u003eG26\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2022–2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eZ4 M40i\u003c\/td\u003e\n\u003ctd\u003eG29\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2019–2026\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM2\u003c\/td\u003e\n\u003ctd\u003eG87\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2023+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM2 CS\u003c\/td\u003e\n\u003ctd\u003eG87\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2026+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 Competition\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 Competition xDrive\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2022+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 CS\u003c\/td\u003e\n\u003ctd\u003eG80\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2024+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM3 Touring\u003c\/td\u003e\n\u003ctd\u003eG81\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2023+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 Competition\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 Competition xDrive\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2022+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 CS\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2025+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 CSL\u003c\/td\u003e\n\u003ctd\u003eG82\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2023\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM4 Convertible\u003c\/td\u003e\n\u003ctd\u003eG83\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2022+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX3 M\u003c\/td\u003e\n\u003ctd\u003eF97\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020–2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX3 M Competition\u003c\/td\u003e\n\u003ctd\u003eF97\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020–2024\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX4 M\u003c\/td\u003e\n\u003ctd\u003eF98\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020–2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eX4 M Competition\u003c\/td\u003e\n\u003ctd\u003eF98\u003c\/td\u003e\n\u003ctd\u003eS58 3.0L Twin-Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020–2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"CSF Radiators","offers":[{"title":"8403 - Nitrous Adapter Plugs (qty 6)","offer_id":52563788824856,"sku":"8403","price":75.0,"currency_code":"USD","in_stock":true},{"title":"8404 - Second Fuel Rail Kit","offer_id":52563788857624,"sku":"8404","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/8403_1.jpg?v=1787619972","url":"https:\/\/speedlogicauto.com\/products\/csf-billet-manifold-accessories-nitrous-adapter-plugs-second-fuel-rail-kit","provider":"SPEED LOGIC","version":"1.0","type":"link"}