{"product_id":"aluminum-fuel-rail-kit-for-1-8t-20v-feed-injector-suitable-for-99-04-vw-golf-mk4-and-02-04-audi-a4-auto-performance-part","title":"Aluminum Fuel Rail Kit for VW Golf MK4 and Audi A4 1.8T 20V 99-04","description":"\u003cdiv\u003e\n\u003cp\u003eUpgrading your fuel delivery system requires precision engineering to handle increased boost and horsepower demands. This billet aluminum fuel rail kit delivers consistent, high-volume fuel flow directly to the injectors on 1999–2004 VW Golf MK4 and 2002–2004 Audi A4 1.8T 20V engines. Factory steel rails often restrict flow under heavy tuning, leading to lean conditions and hesitation. This direct bolt-on replacement eliminates those bottlenecks, keeping your air-fuel ratio stable during aggressive modifications. Built from CNC machined billet aluminum, the unit features a standardized 5\/16-inch internal bore that minimizes pressure drops and ensures rapid throttle response.\u003c\/p\u003e \u003ch2\u003eBenefits \u0026amp; Practical Tips\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe extra inlet and outlet ports allow you to route custom fuel lines around chassis components, keeping hoses tidy and away from exhaust heat.\u003c\/li\u003e\n\u003cli\u003eIf your setup already uses -10 AN fittings, attach ORB-08 to AN-10 adapters to maintain a secure, leak-resistant connection without drilling new holes.\u003c\/li\u003e\n\u003cli\u003eAlways verify fuel pressure gauge readings immediately after startup to confirm the upgraded rail matches your tuner’s target PSI baseline.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: CNC-machined billet aluminum\u003c\/li\u003e\n\u003cli\u003eInternal Bore Diameter: 5\/16 inch\u003c\/li\u003e\n\u003cli\u003ePort Configuration: ORB-08 compact connections plus two auxiliary inlet\/outlet ports\u003c\/li\u003e\n\u003cli\u003eVehicle Compatibility: 1999–2004 VW Golf MK4; 2002–2004 Audi A4 1.8T 20V\u003c\/li\u003e\n\u003cli\u003eMounting Position: Front placement\u003c\/li\u003e\n\u003cli\u003eUnit Weight: 0.47 kg\u003c\/li\u003e\n\u003cli\u003eAvailable Language Support: English\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1x Billet aluminum fuel rail assembly\u003c\/li\u003e\n\u003cli\u003eComplete mounting hardware and end caps\u003c\/li\u003e\n\u003cli\u003ePort sealing plugs for unused connections\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eWarnings \u0026amp; Reminders\u003c\/h2\u003e\n\u003cp\u003eThis performance fuel rail is engineered specifically for modified or high-boost applications that exceed factory power output. Verify that your current fuel pump and pressure regulator can handle the increased flow before installation. Professional fitting is strongly advised to confirm fuel pressure stability and hose integrity prior to dynamometer or engine tuning.\u003c\/p\u003e \u003cp\u003eAll electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.\u003c\/p\u003e\n\u003cp\u003eDelivering tested performance parts to European drivers since 2002 at intercyprus.com — backed by straightforward returns and verified fitment data.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"InterCyprus Trading Ltd","offers":[{"title":"black","offer_id":55111902986582,"sku":"1005010381998940-black","price":85.65,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0530\/0604\/1274\/files\/S2211f5f4da1141ecafdd82e474c88773d.webp?v=1787816005","url":"https:\/\/www.intercyprus.com\/products\/aluminum-fuel-rail-kit-for-1-8t-20v-feed-injector-suitable-for-99-04-vw-golf-mk4-and-02-04-audi-a4-auto-performance-part","provider":"InterCyprus Trading Ltd","version":"1.0","type":"link"}