{"product_id":"jb4-tuner-for-land-rover-defender-octa-v8","title":"JB4 Plug and Play Piggyback ECU Tuning Box for Land Rover Defender OCTA 4.4L V8 Twin-Turbo 2025+ (BETA)","description":"\u003cp\u003eUnlock serious performance from your 2025+ Land Rover Defender OCTA 4.4L V8 twin turbo with the JB4 plug and play tuner. This BETA-support JB4 delivers gains of around 125whp on pump fuel and up to 260whp on higher octane or E85 mixtures, all without an ECU flash. It installs easily, is fully reversible, and works with locked ECUs, making it a powerful and flexible upgrade for your OCTA V8. Supplied in the UK by Nforcd.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePlug and play tuning module for the 2025+ Land Rover Defender OCTA 4.4L V8 twin turbo\u003c\/li\u003e\n  \u003cli\u003eApprox. 125whp gains on pump fuel and up to 260whp on higher octane or E85, where available\u003c\/li\u003e\n  \u003cli\u003ePreloaded OCTA-specific JB4 software with up to 8 selectable maps to suit fuel and modifications\u003c\/li\u003e\n  \u003cli\u003eBoost by gear control for 1st, 2nd and 3rd to help optimise traction and launches\u003c\/li\u003e\n  \u003cli\u003eEthanol compatible tuning maps, including E85 support\u003c\/li\u003e\n  \u003cli\u003eRead and clear fault codes plus advanced CANbus-based diagnostics\u003c\/li\u003e\n  \u003cli\u003eReal-time data logging and up to 40 live gauges via the free JB4PRO app when used with the optional JB4 PRO Bluetooth adapter\u003c\/li\u003e\n  \u003cli\u003eUser-adjustable 1st and 2nd gear boost limiting via the app\u003c\/li\u003e\n  \u003cli\u003eElectronic wastegate control under development\u003c\/li\u003e\n  \u003cli\u003eCANbus OBDII integration for enhanced performance, safety and smooth OEM-like drivability\u003c\/li\u003e\n  \u003cli\u003eQuick installation with no cutting or splicing of factory wiring and fully removable\u003c\/li\u003e\n  \u003cli\u003eNot VIN-locked, so it can be moved to another vehicle or resold later\u003c\/li\u003e\n  \u003cli\u003eCompatible with all driving modes; fuel economy unchanged during normal driving\u003c\/li\u003e\n  \u003cli\u003eRugged billet aluminium enclosure\u003c\/li\u003e\n  \u003cli\u003eMade in the USA with a 5 year warranty\u003c\/li\u003e\n  \u003cli\u003e91 octane fuel or better required for performance gains\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFitment: 2025+ Land Rover Defender OCTA 4.4L V8 Twin Turbo.\u003c\/p\u003e\n\n\u003cp\u003eNforcd knows JB4 products well and this OCTA V8 tuner has quickly become a favourite for owners wanting a powerful, reversible upgrade without unlocking the ECU. Order yours today for fast UK delivery. Professional fitting is available at Nforcd in Warwickshire; request a quote via Sales@nforcd.com.\u003c\/p\u003e","brand":"Burger Motorsports","offers":[{"title":"Default Title","offer_id":55463305412993,"sku":null,"price":1298.7,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0552\/9465\/6700\/files\/BMW-S58-JB4-Tuner_d106910f-2ba5-4b53-a87d-be2a619ea559.jpg?v=1774347750","url":"https:\/\/www.nforcd.com\/products\/jb4-tuner-for-land-rover-defender-octa-v8","provider":"Nforcd","version":"1.0","type":"link"}