{"product_id":"ecu-upgrade-tune","title":"ECU Upgrade Tune","description":"The RR Racing ECU Upgrade Tune offers a reliable OBD tuning solution for the Lexus IS\/GS350 (2nd gen) engine control unit, eliminating the need to send the ECU for upgrade. This tune has been meticulously developed through extensive road and dyno testing to optimize power and torque effectively while maintaining stock fuel efficiency, knock control sensitivity, and safety features. The development process involved hundreds of runs, datalogs, and miles of testing to understand ECU reactions and adjust learning parameters.\n\nThe tune incorporates comprehensive adjustments to key ECU functions, including Direct Injection\/Port Injection fuel mapping, ignition control (base, cam timing dependent, and knock correction), variable cam maps, and torque-to-throttle mapping for enhanced throttle response. A significant feature is the increase of the rev limit to 7200 RPM, which contributes to a better power curve and improved acceleration by allowing the engine to pull more linearly through the midrange and top-end.\n\nInstallation involves using the provided OBD unit, reading the ECU ID with a Windows computer, and emailing it to RR Racing for tune file generation. The vehicle must have the latest Lexus calibration file implemented by a dealer. RR Racing estimates gains of 10 to 15 whp and wtq. All dyno testing is performed on a climate-controlled Dynojet 424x all-wheel-drive testing facility. Updates to the tune for parts purchased directly from RR Racing are free, though a fee may apply for parts not purchased from them. RR-Racing advises that this modification may affect manufacturer or third-party warranties and is intended for race track use at the purchaser's risk.","brand":"RR Racing","offers":[{"title":"Default Title","offer_id":52663551689016,"sku":"IG350TNE02","price":564.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687658279.jpg?v=1784327967","url":"https:\/\/store.motormia.co\/products\/ecu-upgrade-tune","provider":"MOTORMIA","version":"1.0","type":"link"}