{"product_id":"513-hp-stage-2-ecu-software-power-package-bmw-m240i-m340i-m440i-z4m40i-generation-2-b58","title":"513 HP Stage 2 ECU Software Power Package | BMW M240i\/M340i\/M440i\/Z4M40i Generation 2 B58","description":"\u003cdiv class=\"flex flex-col\"\u003e\n\u003cbutton type=\"button\" class=\"text-token-text-tertiary flex items-center gap-1 text-start dark:text-(--interactive-label-tertiary-default) hover:text-token-text-primary dark:hover:text-token-text-primary\" aria-expanded=\"false\"\u003eWorked for 18s\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" aria-hidden=\"true\" data-rtl-flip=\"\" class=\"icon-sm transition-transform\"\u003e\u003cuse fill=\"currentColor\" href=\"\/cdn\/assets\/sprites-core-9b741f16.svg#b140e7\"\u003e\u003c\/use\u003e\u003c\/svg\u003e\u003c\/button\u003e\n\u003cdiv class=\"fKQ0lq_Layout w-full\" data-item-anchor=\"start\" data-clip=\"true\" data-dimension=\"height\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"d988cad2-e9c6-58fa-a68b-3d64aa6b3b70\" data-turn-start-message=\"true\" dir=\"auto\" data-message-model-slug=\"gpt-5.6-sol-wm\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"streaming-animation markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"1691akm\" data-start=\"0\" data-end=\"44\"\u003eCarBahn Stage 2 Power Package — Gen 2 B58\u003c\/h2\u003e\n\u003cp data-start=\"46\" data-end=\"234\"\u003eUnlock the full potential of the Gen 2 B58 with a complete, matched combination of performance software, upgraded cooling, and improved airflow. The CarBahn Stage 2 Power Package includes:\u003c\/p\u003e\n\u003cul data-start=\"236\" data-end=\"349\"\u003e\n\u003cli data-section-id=\"rbmo8n\" data-start=\"236\" data-end=\"266\"\u003eCarBahn Stage 2 ECU Software\u003c\/li\u003e\n\u003cli data-section-id=\"12m2vqv\" data-start=\"267\" data-end=\"308\"\u003eCarBahn High-Performance Heat Exchanger\u003c\/li\u003e\n\u003cli data-section-id=\"gf2ofy\" data-start=\"309\" data-end=\"349\"\u003eFREE CarBahn B58 High-Flow Air Filters\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"351\" data-end=\"589\"\u003eDeveloped through extensive dyno testing, the Stage 2 calibration optimizes boost, ignition timing, fueling, and torque delivery to produce significantly more power while preserving the smooth, predictable drivability expected from a BMW.\u003c\/p\u003e\n\u003cp data-start=\"591\" data-end=\"828\"\u003eOn 93 octane, Stage 2 delivers an additional 74 horsepower and 73 lb-ft of torque at the flywheel. With 100-octane fuel, output climbs to an estimated 513 horsepower and 570 lb-ft of torque—gains of 98 horsepower and 97 lb-ft over stock.\u003c\/p\u003e\n\u003ch3 data-section-id=\"5g6ct8\" data-start=\"830\" data-end=\"861\"\u003ePower That Stays Consistent\u003c\/h3\u003e\n\u003cp data-start=\"863\" data-end=\"1209\"\u003eMore boost creates more heat, and rising intake-air temperatures can cause the factory ECU to reduce ignition timing and power. The included high-performance heat exchanger helps control that heat so the engine can deliver stronger, more repeatable performance during sustained acceleration, mountain driving, hot-weather use, and repeated pulls.\u003c\/p\u003e\n\u003cp data-start=\"1211\" data-end=\"1765\"\u003eIts motorsport-grade bar-and-plate core uses optimized end-tank geometry, increased thermal surface area, and F1-derived thermal-efficiency technology to improve heat rejection while maintaining coolant velocity and airflow efficiency. The result is lower, more stable intake-air temperatures with reduced heat soak, timing pull, and power fade. CarBahn rates this heat exchanger design for up to 40% greater cooling capacity than the factory system. \u003ca data-start=\"1662\" data-end=\"1765\" rel=\"noopener\" class=\"decorated-link\" href=\"https:\/\/carbahn.com\/products\/heat-exchanger-kit-bmw-x3-m40i-x4-m40i\"\u003eHeat exchanger technical details\u003c\/a\u003e\u003c\/p\u003e\n\u003cp data-start=\"1767\" data-end=\"1941\"\u003eThe included B58 high-flow air filters complement the software and cooling upgrades by improving airflow through the factory airboxes—at no additional cost with this package.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1f69yys\" data-start=\"1943\" data-end=\"1966\"\u003ePerformance Results\u003c\/h3\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1968\" data-end=\"2236\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1968\" data-end=\"2023\"\u003e\n\u003ctr data-start=\"1968\" data-end=\"2023\"\u003e\n\u003cth data-start=\"1968\" data-end=\"1975\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eFuel\u003c\/th\u003e\n\u003cth data-start=\"1975\" data-end=\"1991\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eConfiguration\u003c\/th\u003e\n\u003cth data-start=\"1991\" data-end=\"2008\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eFlywheel Power\u003c\/th\u003e\n\u003cth data-start=\"2008\" data-end=\"2023\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eWheel Power\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2044\" data-end=\"2236\"\u003e\n\u003ctr data-start=\"2044\" data-end=\"2103\"\u003e\n\u003ctd data-start=\"2044\" data-end=\"2048\" data-col-size=\"sm\"\u003e—\u003c\/td\u003e\n\u003ctd data-start=\"2048\" data-end=\"2060\" data-col-size=\"sm\"\u003eOEM Stock\u003c\/td\u003e\n\u003ctd data-start=\"2060\" data-end=\"2081\" data-col-size=\"sm\"\u003e415 HP \/ 473 lb-ft\u003c\/td\u003e\n\u003ctd data-start=\"2081\" data-end=\"2103\" data-col-size=\"sm\"\u003e341 HP \/ 388 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2104\" data-end=\"2169\"\u003e\n\u003ctd data-start=\"2104\" data-end=\"2116\" data-col-size=\"sm\"\u003e93 Octane\u003c\/td\u003e\n\u003ctd data-start=\"2116\" data-end=\"2126\" data-col-size=\"sm\"\u003eStage 2\u003c\/td\u003e\n\u003ctd data-start=\"2126\" data-end=\"2147\" data-col-size=\"sm\"\u003e489 HP \/ 546 lb-ft\u003c\/td\u003e\n\u003ctd data-start=\"2147\" data-end=\"2169\" data-col-size=\"sm\"\u003e401 HP \/ 448 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2170\" data-end=\"2236\"\u003e\n\u003ctd data-start=\"2170\" data-end=\"2183\" data-col-size=\"sm\"\u003e100 Octane\u003c\/td\u003e\n\u003ctd data-start=\"2183\" data-end=\"2193\" data-col-size=\"sm\"\u003eStage 2\u003c\/td\u003e\n\u003ctd data-start=\"2193\" data-end=\"2214\" data-col-size=\"sm\"\u003e513 HP \/ 570 lb-ft\u003c\/td\u003e\n\u003ctd data-start=\"2214\" data-end=\"2236\" data-col-size=\"sm\"\u003e421 HP \/ 468 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 data-section-id=\"1n1aybe\" data-start=\"2238\" data-end=\"2258\"\u003eGains Over Stock\u003c\/h3\u003e\n\u003cul data-start=\"2260\" data-end=\"2712\"\u003e\n\u003cli data-section-id=\"btkrab\" data-start=\"2260\" data-end=\"2309\"\u003e93 octane: +74 HP and +73 lb-ft at the flywheel\u003c\/li\u003e\n\u003cli data-section-id=\"yvrisz\" data-start=\"2310\" data-end=\"2358\"\u003e93 octane: +60 WHP and +60 lb-ft at the wheels\u003c\/li\u003e\n\u003cli data-section-id=\"1b4ee34\" data-start=\"2359\" data-end=\"2409\"\u003e100 octane: +98 HP and +97 lb-ft at the flywheel\u003c\/li\u003e\n\u003cli data-section-id=\"1s6h8ko\" data-start=\"2410\" data-end=\"2459\"\u003e100 octane: +80 WHP and +80 lb-ft at the wheels\u003c\/li\u003e\n\u003cli data-section-id=\"4vf1m3\" data-start=\"2460\" data-end=\"2514\"\u003eImproved throttle response and midrange acceleration\u003c\/li\u003e\n\u003cli data-section-id=\"1pckxu3\" data-start=\"2515\" data-end=\"2581\"\u003eReduced heat soak and more consistent power under sustained load\u003c\/li\u003e\n\u003cli data-section-id=\"vm8phz\" data-start=\"2582\" data-end=\"2619\"\u003eSmooth, factory-like power delivery\u003c\/li\u003e\n\u003cli data-section-id=\"13ibjec\" data-start=\"2620\" data-end=\"2670\"\u003eCalibrations available for fuel up to 100 octane\u003c\/li\u003e\n\u003cli data-section-id=\"13q79qr\" data-start=\"2671\" data-end=\"2712\"\u003eFREE B58 high-flow air filters included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2714\" data-end=\"2917\" data-is-last-node=\"\" data-is-only-node=\"\"\u003ePower figures represent CarBahn test results under controlled conditions. Actual output may vary depending on vehicle condition, fuel quality, installed hardware, environmental conditions, and dyno type.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"CarBahn","offers":[{"title":"Default Title","offer_id":52359081197885,"sku":null,"price":2295.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/carbahn.com\/products\/513-hp-stage-2-ecu-software-power-package-bmw-m240i-m340i-m440i-z4m40i-generation-2-b58","provider":"CarBahn","version":"1.0","type":"link"}