{"product_id":"racingline-racingline-oem-performance-ecu-software-audi-s4-s5-sq5-b9-3-0-tfsi-ea839","title":"RacingLine OEM+ Performance ECU Software – Audi S4, S5 \u0026 SQ5 B9 3.0 TFSI EA839","description":"\u003cp\u003e\u003cstrong\u003eRacingLine OEM+ Performance ECU Software – Audi S4, S5 \u0026amp; SQ5 B9 3.0 TFSI EA839\u003c\/strong\u003e is a RacingLine performance upgrade supplied by Euro Kustoms for Audi applications. It is designed to improve engine response, power delivery and calibration consistency, with fitment checked against the selected vehicle and SKU.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDeveloped as a vehicle-specific upgrade with clear compatibility requirements.\u003c\/li\u003e\n\u003cli\u003eCalibration or hardware upgrade intended to work with the vehicle’s existing systems when correctly specified.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Audi applications. Check the vehicle, engine and transmission details before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e RacingLine  |  \u003cstrong\u003eSKU:\u003c\/strong\u003e OEM UP S4 B9\u003c\/p\u003e\u003cp\u003eEuro Kustoms can help confirm compatibility and installation requirements before supply. Professional installation is recommended where the product affects suspension, braking, drivetrain or engine calibration.\u003c\/p\u003e","brand":"Racingline","offers":[{"title":"Default Title","offer_id":67587623518421,"sku":"OEM UP S4 B9","price":1887.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0531\/7515\/6916\/files\/653f35_bd17048f3b0047be953070cbf2e65d9f_mv2_d74b82d2-53bc-4c9f-b7af-23049eaf42bd.png?v=1790600378","url":"https:\/\/eurokustoms.com.au\/products\/racingline-racingline-oem-performance-ecu-software-audi-s4-s5-sq5-b9-3-0-tfsi-ea839","provider":"Euro Kustoms","version":"1.0","type":"link"}