{"product_id":"jb4-performance-tuner-for-mercedes-benz-amg-c63-e63-gt-glc-63-m178-up-to-100-whp","title":"JB4 Performance Tuner for Mercedes-Benz AMG C63, E63, GT \u0026 GLC 63 (M178)","description":"\u003cdiv class=\"product-description\"\u003e\n\u003ch1\u003eJB4 Performance Tuner for Mercedes-Benz AMG\u003cbr\u003eC63, E63, GT, GLC (Including S Models)\u003c\/h1\u003e\n\u003cp\u003e\u003cstrong\u003eUnlock the full potential of your AMG.\u003c\/strong\u003e The \u003cstrong\u003eJB4 Performance Tuner\u003c\/strong\u003e is the most powerful, feature-rich plug \u0026amp; play tuning solution available for Mercedes-Benz AMG vehicles equipped with the M178 engine. Designed to work seamlessly with your factory ECU, the JB4 delivers massive power gains, faster throttle response, and reduced turbo lag—while maintaining factory smoothness and reliability.\u003c\/p\u003e\n\u003ch2\u003e🔥 Power You Can Feel\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUp to +100 WHP \u0026amp; +100 WTQ\u003c\/strong\u003e on a stock vehicle\u003c\/li\u003e\n\u003cli\u003eImproved throttle response and reduced turbo lag\u003c\/li\u003e\n\u003cli\u003eFaster 0–60 and quarter-mile times\u003c\/li\u003e\n\u003cli\u003eRuns as smoothly as stock across all driving modes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🔌 True Plug \u0026amp; Play Installation\u003c\/h2\u003e\n\u003cp\u003eThe JB4 installs in under an hour with no cutting, splicing, or permanent modifications. It connects directly to easy-to-access engine bay sensors and integrates with your factory ECU for precise, intelligent control.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManifold TMAP\u003c\/li\u003e\n\u003cli\u003eCharge pipe MAP\u003c\/li\u003e\n\u003cli\u003eFuel pressure sensors (both sides)\u003c\/li\u003e\n\u003cli\u003eOBDII CANbus connection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🧠 Advanced CANbus Integration\u003c\/h2\u003e\n\u003cp\u003eUnlike basic “chip tunes,” the JB4 features full CANbus integration, allowing it to monitor and react to real-time engine data for unmatched performance and safety.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFuel control for safe high-power operation\u003c\/li\u003e\n\u003cli\u003eAdvanced engine data monitoring\u003c\/li\u003e\n\u003cli\u003eImproved performance over non-integrated tuning solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e📱 Smartphone Control \u0026amp; Datalogging\u003c\/h2\u003e\n\u003cp\u003ePair your JB4 with a compatible Bluetooth adapter to unlock full wireless control via your iOS or Android device.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch performance maps on the fly\u003c\/li\u003e\n\u003cli\u003eDatalog up to 40 engine parameters in real time\u003c\/li\u003e\n\u003cli\u003eRead \u0026amp; delete fault codes\u003c\/li\u003e\n\u003cli\u003eFirmware updates with new features and maps\u003c\/li\u003e\n\u003cli\u003e0–60 performance measurement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eJB4 Mobile app sold separately ($29) and requires a JB4 Bluetooth adapter.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003e🏁 Race-Ready Features (Exclusive to JB4)\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUser-adjustable \u003cstrong\u003eboost by gear\u003c\/strong\u003e for improved traction\u003c\/li\u003e\n\u003cli\u003eSupport for pump gas, E85 blends, race fuel, and WMI\u003c\/li\u003e\n\u003cli\u003eValet mode with reduced power\u003c\/li\u003e\n\u003cli\u003eExhaust flap control on most applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e⚙️ Optional Boost Control Module (BCM)\u003c\/h2\u003e\n\u003cp\u003eFor vehicles running aggressive bolt-ons, WMI, upgraded turbos, or high-octane fuel, the optional \u003cstrong\u003eBoost Control Module (BCM)\u003c\/strong\u003e allows direct wastegate control for increased boost targeting.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRequired for higher-than-stock wastegate duty cycles\u003c\/li\u003e\n\u003cli\u003ePlugs directly into JB4 harness and boost solenoid\u003c\/li\u003e\n\u003cli\u003eEstimated price: $199 (sold separately)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e✅ JB4 Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 8 preloaded performance maps\u003c\/li\u003e\n\u003cli\u003eEthanol (E85) compatible tuning\u003c\/li\u003e\n\u003cli\u003eBoost-by-gear control (1st, 2nd, 3rd)\u003c\/li\u003e\n\u003cli\u003eFuel economy unchanged during normal driving\u003c\/li\u003e\n\u003cli\u003e91 octane or higher recommended\u003c\/li\u003e\n\u003cli\u003eNot VIN locked – transferable or resellable\u003c\/li\u003e\n\u003cli\u003eRemovable with no trace\u003c\/li\u003e\n\u003cli\u003eRugged billet aluminum enclosure\u003c\/li\u003e\n\u003cli\u003eMade in the USA\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e5-Year Warranty\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e🚗 Vehicle Fitment (M178 Engine)\u003c\/h2\u003e\n\u003ch3\u003eC-Class\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2015+ Mercedes-Benz C63 AMG\u003c\/li\u003e\n\u003cli\u003e2015+ Mercedes-Benz C63 S AMG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eE-Class\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2017+ Mercedes-Benz E63 AMG\u003c\/li\u003e\n\u003cli\u003e2017+ Mercedes-Benz E63 S AMG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAMG GT\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2015+ AMG GT\u003c\/li\u003e\n\u003cli\u003eAMG GT S\u003c\/li\u003e\n\u003cli\u003eAMG GT R\u003c\/li\u003e\n\u003cli\u003e2018+ AMG GT 63 \u0026amp; GT 63 S\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGLC\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e2015+ Mercedes-Benz GLC 63 AMG\u003c\/li\u003e\n\u003cli\u003e2015+ Mercedes-Benz GLC 63 S AMG\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e❓ What Is a JB4?\u003c\/h2\u003e\n\u003cp\u003eThe JB4 is a proven plug \u0026amp; play tuning system for turbocharged vehicles that installs between your engine sensors and ECU. By intelligently manipulating boost, fuel, and timing—while monitoring real-time CANbus data—the JB4 delivers massive performance gains with factory-like drivability.\u003c\/p\u003e\n\u003cp\u003eOften imitated but never duplicated, the JB4 has been the gold standard in plug \u0026amp; play turbo tuning for over a decade and is trusted by enthusiasts in over 67 countries worldwide.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BenzUnited Parts","offers":[{"title":"Default Title","offer_id":46514985599151,"sku":null,"price":799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/8718\/9935\/files\/mercedes-benz-c-class-tuner-C63-jb4-_2_540x_cd2d5f70-8651-4b97-8bee-4de9cef22dd7.webp?v=1769376826","url":"https:\/\/benzunitedparts.com\/products\/jb4-performance-tuner-for-mercedes-benz-amg-c63-e63-gt-glc-63-m178-up-to-100-whp","provider":"BenzUnited Parts","version":"1.0","type":"link"}