{"title":"BMW M50\/M52\/S50\/S52 Tunes","description":"\u003cp\u003eBMW staged calibrations for supported M50, M50TU, M52, S50, and S52 engine\/ECU combinations.\u003c\/p\u003e\u003cp\u003eChoose the vehicle and ECU carefully. Naturally aspirated stages describe calibration level; factory-turbo map-pack stages must match the stated hardware and fuel requirements. One-off, revision-based work belongs with \u003ca href=\"https:\/\/undisputedracing.com\/\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eUNDSPTD. bespoke tuning\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"92-95-obd1-e36-custom-tune-n-a","title":"92–95 BMW E36 M50 OBD1 N\/A Tune — Stage 1\/2\/3","description":"\u003cdiv style=\"border: 2px solid #6f4aa8; border-radius: 12px; padding: 16px; margin: 0 0 24px; background: #f7f1ff;\"\u003e\n\u003ch2 style=\"margin-top: 0;\"\u003eDIGITAL TUNE DELIVERY\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe tune itself is delivered by email. No physical tune is shipped, and no tracking number is expected.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour calibration file and applicable flashing instructions are sent to the email address used at checkout.\u003c\/li\u003e\n\u003cli\u003eComplete the Tune Configurator for the car exactly as it will be when flashed, and review every selection before checkout.\u003c\/li\u003e\n\u003cli\u003eA full ECU read is not required unless Poverty Built requests one after reviewing the order.\u003c\/li\u003e\n\u003cli\u003eFlashing software, licenses, cables, and interfaces are separate unless this listing or your order specifically says they are included.\u003c\/li\u003e\n\u003cli\u003eIf your order also includes a cable or other physical hardware, that item ships separately. A shipping label means the package is being prepared; it is not in transit until the carrier receives it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eConfigure the car first. Choose the stage second.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a platform-developed, naturally aspirated calibration for \u003cstrong\u003eM50\/M50TU six-cylinder\u003c\/strong\u003e vehicles using \u003cstrong\u003esupported OBD1 Bosch\/Siemens engine management\u003c\/strong\u003e. \u003cstrong\u003eThe stage is not a parts list and does not tell you which modifications the car must have.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse the Tune Configurator to describe the car exactly as it will be when the tune is flashed. Once the vehicle, engine, hardware, fuel, transmission, and requested ECU behavior are correct, choose the stage based on the level and driving character you want.\u003c\/p\u003e\n\n\u003ch2\u003eHOW TO ORDER\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm the ECU.\u003c\/strong\u003e Model year and chassis are not enough by themselves. The ECU identification or read must match this listing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete every product option accurately.\u003c\/strong\u003e Select only the engine, hardware, fuel, and requested features that will actually be on the car when flashed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose the stage.\u003c\/strong\u003e The stage determines the level and character of the calibration—not which parts you are required to install.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eExample:\u003c\/strong\u003e An intake, headers, exhaust, manifold, or cams do not automatically make a car Stage 2 or Stage 3. Select the installed parts in the options, then choose the stage that matches the performance and behavior you want. Suggested modifications can improve the result, but they are not stage requirements.\u003c\/p\u003e\n\u003cp\u003eIf the exact setup is not represented in the available options, contact us before ordering instead of selecting the closest answer.\u003c\/p\u003e\n\n\u003ch2\u003eWHAT EACH STAGE MEANS\u003c\/h2\u003e\n\u003ch3\u003eSTAGE 1 — OEM+\u003c\/h3\u003e\n\u003cp\u003eThe cleanest and simplest performance calibration. Stage 1 focuses on response, smooth power delivery, and factory-like drivability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHardware reminder:\u003c\/strong\u003e Stage 1 does not mean stock parts only. The submitted options still tell us how the car is configured.\u003c\/p\u003e\n\n\u003ch3\u003eSTAGE 2 — PERFORMANCE\u003c\/h3\u003e\n\u003cp\u003eA more assertive naturally aspirated calibration with additional performance optimization and stronger response than Stage 1. The file is still configured around the hardware selections submitted with the order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon bolt-ons are suggestions, not requirements.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eSTAGE 3 — MAXIMUM N\/A\u003c\/h3\u003e\n\u003cp\u003eThe most comprehensive and aggressive naturally aspirated calibration offered by Poverty Built for supported combinations on this platform.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMajor modifications are not automatically required.\u003c\/strong\u003e Select only the hardware actually installed on the car.\u003c\/p\u003e\n\n\u003ch2\u003eFITMENT\u003c\/h2\u003e\n\u003cul\u003e\u003cli\u003e1992–1995 BMW E36 six-cylinder applications using a supported M50\/M50TU OBD1 ECU\u003c\/li\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e This listing is for supported six-cylinder M50\/M50TU applications. It is not the correct product for a four-cylinder 318i\/318is.\u003c\/p\u003e\n\n\u003ch2\u003eWHAT IS CALIBRATED\u003c\/h2\u003e\n\u003cp\u003eDepending on the stage and options selected, the calibration may include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePart-load and full-load fueling\u003c\/li\u003e\n\u003cli\u003eIgnition timing\u003c\/li\u003e\n\u003cli\u003eVANOS behavior on applicable M50TU engines\u003c\/li\u003e\n\u003cli\u003eLoad and airflow calibration\u003c\/li\u003e\n\u003cli\u003eIdle and rev-limiter preferences\u003c\/li\u003e\n\u003cli\u003eTop-speed limiter changes where supported\u003c\/li\u003e\n\u003cli\u003eMAF and injector configuration for supported hardware\u003c\/li\u003e\n\u003cli\u003eSupported diagnostic or immobilizer-related configuration when selected\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTHE TUNE CONFIGURATOR IS PART OF THE ORDER\u003c\/h2\u003e\n\u003cp\u003eThe options collect the configuration and behavior needed to prepare the correct supported file. They do not determine the stage automatically. Incorrect selections can produce an incorrect file, so review the entire form before checkout.\u003c\/p\u003e\n\n\u003ch2\u003eBEFORE YOU ORDER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe vehicle must be mechanically healthy. A calibration will not repair vacuum leaks, failing sensors, weak fuel delivery, ignition faults, cooling problems, low compression, or other mechanical issues.\u003c\/li\u003e\n\u003cli\u003eChoose options for the car exactly as it will be driven with this tune.\u003c\/li\u003e\n\u003cli\u003eHardware changes made after delivery may require purchasing an updated calibration.\u003c\/li\u003e\n\u003cli\u003eResults vary with vehicle condition, fuel quality, altitude, weather, and installed hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWHAT YOU RECEIVE\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA Poverty Built platform-developed calibration configured around the selections submitted with the order\u003c\/li\u003e\n\u003cli\u003eFlashing guidance for the supported supported OBD1 Bosch\/Siemens engine management process\u003c\/li\u003e\n\u003cli\u003eCorrection of a verified tune-related issue if the delivered file does not match the submitted order\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis is a staged Poverty Built product for supported combinations.\u003c\/strong\u003e It does not include one-off development, repeated datalog review, ongoing revisions, or later hardware changes. Builds requiring an individualized calibration process should use \u003ca href=\"https:\/\/undisputedracing.com\/\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eUNDSPTD. bespoke tuning\u003c\/strong\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eFLASHING REQUIREMENTS\u003c\/h2\u003e\n\u003cp\u003eUse a compatible flashing method for the supported ECU. If Poverty Built needs a file read or additional ECU identification for your specific order, we will request it. \u003cstrong\u003eYou do not need to submit a full read unless asked.\u003c\/strong\u003e The customer is responsible for stable battery voltage, correct file handling, and a reliable connection during flashing.\u003c\/p\u003e\n\n\u003ch2\u003eCLOSED-COURSE \/ OFF-ROAD USE\u003c\/h2\u003e\n\u003cp\u003eAny selected option that changes the operation or reporting of emissions-related equipment is intended only for lawful closed-course competition or off-road use. You are responsible for knowing and following all laws that apply to the vehicle and location.\u003c\/p\u003e\n\n\u003ch2\u003ePOVERTY BUILT DISCLAIMER\u003c\/h2\u003e\n\u003cp\u003eBy purchasing this product, you acknowledge that ECU tuning carries risk and that Poverty Built LLC is not liable for engine failure, drivetrain damage, flashing interruption, emissions violations, losses caused by incorrect customer selections, or indirect, incidental, or consequential damages. Results depend on vehicle condition, modifications, fuel, installation quality, and the accuracy of the information submitted with the order. The vehicle must be mechanically sound and properly maintained before and after tuning. Your purchase is also subject to the posted refund and service policies.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eComplete Your Build\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eWorking on the engine while you tune it? \u003ca href=\"https:\/\/povertybuilt.com\/products\/m50-m52-e36-e39-e46-z3-poverty-built-aluminum-valve-cover\"\u003eSee the Poverty Built aluminum valve cover for M50\/M52\/S52 applications.\u003c\/a\u003e US valve-cover shipping is free.\u003c\/p\u003e\n\u003ch2\u003eHelpful guides\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/how-tos-for-tuning-bmws\/building-the-perfect-naturally-aspirated-e36\"\u003ePlan a naturally aspirated E36 build\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/how-tos-for-tuning-bmws\/bmw-m50-m52-aluminum-valve-cover-guide\"\u003eReview M50\/M52 valve-cover fitment\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Poverty Built","offers":[{"title":"Default Title","offer_id":49280516292896,"sku":"","price":225.0,"currency_code":"USD","in_stock":true}]},{"product_id":"96-99-obd2-e36-custom-tune-n-a","title":"96–99 BMW E36 323i\/328i\/M3 MS41 N\/A Tune — Stage 1\/1+\/2\/3","description":"\u003cdiv style=\"border: 2px solid #6f4aa8; border-radius: 12px; padding: 16px; margin: 0 0 24px; background: #f7f1ff;\"\u003e\n\u003ch2 style=\"margin-top: 0;\"\u003eDIGITAL TUNE DELIVERY\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThe tune itself is delivered by email. No physical tune is shipped, and no tracking number is expected.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYour calibration file and applicable flashing instructions are sent to the email address used at checkout.\u003c\/li\u003e\n\u003cli\u003eComplete the Tune Configurator for the car exactly as it will be when flashed, and review every selection before checkout.\u003c\/li\u003e\n\u003cli\u003eA full ECU read is not required unless Poverty Built requests one after reviewing the order.\u003c\/li\u003e\n\u003cli\u003eFlashing software, licenses, cables, and interfaces are separate unless this listing or your order specifically says they are included.\u003c\/li\u003e\n\u003cli\u003eIf your order also includes a cable or other physical hardware, that item ships separately. A shipping label means the package is being prepared; it is not in transit until the carrier receives it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eConfigure the car first. Choose the stage second.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis is a platform-developed, naturally aspirated calibration configured for 1996–1999 BMW E36 models using MS41\/MS41.2. \u003cstrong\u003eThe stage is not a parts list and does not tell you which modifications your car must have.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUse the Tune Configurator to describe the car exactly as it will be when the tune is flashed—including the engine, intake manifold, MAF, injectors, cams, exhaust, fuel, and any other listed choices. Once the hardware configuration is correct, choose the stage based on the level of calibration and driving behavior you want.\u003c\/p\u003e\n\n\u003ch2\u003eHOW TO ORDER\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eDecide how the car will be set up when the tune is installed.\u003c\/strong\u003e Do not select parts that are not installed yet unless they will be on the car before you flash it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelect the options that match the actual car.\u003c\/strong\u003e The hardware selections tell us what parts the calibration must support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose your stage.\u003c\/strong\u003e The stage determines the level and character of the calibration—not which parts you are required to buy.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eExample:\u003c\/strong\u003e Headers and an M50 intake manifold do not automatically make a car “Stage 2” or “Stage 3.” Select those parts in the hardware options, then choose the stage that matches the performance and behavior you want. Likewise, a mostly stock car may choose a higher stage without first installing every part commonly suggested for that stage. \u003cstrong\u003eSuggested modifications are recommendations—not stage requirements.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIf your exact setup is not represented in the available options, contact us before ordering instead of selecting the closest answer.\u003c\/p\u003e\n\n\u003ch2\u003eWHAT EACH STAGE MEANS\u003c\/h2\u003e\n\n\u003ch3\u003eSTAGE 1 — OEM+ | $99\u003c\/h3\u003e\n\u003cp\u003eThe cleanest and simplest performance calibration. Stage 1 focuses on improved throttle response, optimized fueling, ignition and VANOS behavior, and smooth factory-like drivability. Best for someone who wants the car to feel sharper without an aggressive personality.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHardware reminder:\u003c\/strong\u003e Stage 1 does not mean “stock parts only.” Your selected hardware options still tell us how the car is configured.\u003c\/p\u003e\n\n\u003ch3\u003eSTAGE 1+ — SPORT | $139\u003c\/h3\u003e\n\u003cp\u003eBuilds on the Stage 1 foundation with sharper response and a sportier driving character. Additional supported behavior and closed-course\/off-road configuration choices are applied when selected in the Tune Configurator. Mild burbles may be selected where offered.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHardware reminder:\u003c\/strong\u003e Stage 1+ is a calibration level, not a required modification package.\u003c\/p\u003e\n\n\u003ch3\u003eSTAGE 2 — PERFORMANCE | $159\u003c\/h3\u003e\n\u003cp\u003eA more assertive naturally aspirated calibration with additional performance optimization and stronger response than Stage 1\/1+. The file is configured around the hardware choices submitted with the order.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeaders and an intake are not required to purchase Stage 2.\u003c\/strong\u003e They are common supporting upgrades, not the definition of the stage.\u003c\/p\u003e\n\n\u003ch3\u003eSTAGE 3 — MAXIMUM N\/A | $180\u003c\/h3\u003e\n\u003cp\u003eOur most comprehensive and aggressive naturally aspirated calibration for this platform. Stage 3 offers the highest available level of performance and behavior within Poverty Built’s staged calibration structure and supports the advanced configuration choices shown on the product form.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCams, an M50 manifold, headers, or other major upgrades are not automatically required.\u003c\/strong\u003e Select only the hardware actually installed on the car.\u003c\/p\u003e\n\n\u003ch2\u003eFITMENT\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1996–1999 BMW E36 323i \/ 323is \/ 323iC\u003c\/strong\u003e — M52B25, MS41\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1996–1999 BMW E36 328i \/ 328is \/ 328iC\u003c\/strong\u003e — M52B28, MS41\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1996–1999 BMW E36 M3\u003c\/strong\u003e — S52B32, MS41.2\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWHAT IS CALIBRATED\u003c\/h2\u003e\n\u003cp\u003eDepending on the stage and options selected, the calibration may include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePart-load and full-load fueling\u003c\/li\u003e\n\u003cli\u003eIgnition timing\u003c\/li\u003e\n\u003cli\u003eVANOS behavior across RPM and load\u003c\/li\u003e\n\u003cli\u003eThrottle response and load modeling\u003c\/li\u003e\n\u003cli\u003eIdle speed, cooling-fan temperature and rev-limiter preferences\u003c\/li\u003e\n\u003cli\u003eMAF and injector calibration when supported hardware is selected\u003c\/li\u003e\n\u003cli\u003eOptional top-speed limiter changes\u003c\/li\u003e\n\u003cli\u003eOptional EWS and supported closed-course\/off-road diagnostic configurations when selected\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBEFORE YOU ORDER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe vehicle must be mechanically healthy before tuning. A calibration will not repair vacuum leaks, failing sensors, weak fuel delivery, ignition problems, overheating, low compression, or other mechanical faults.\u003c\/li\u003e\n\u003cli\u003eChoose options for the car exactly as it will be driven with this tune.\u003c\/li\u003e\n\u003cli\u003eHardware changes made after the file is delivered may require purchasing an updated calibration.\u003c\/li\u003e\n\u003cli\u003ePower gains vary with engine condition, fuel quality, altitude, weather, and installed hardware.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWHAT YOU RECEIVE\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eA Poverty Built platform-developed calibration configured around the selections submitted with your order\u003c\/li\u003e\n\u003cli\u003eFlashing guidance for the supported MS41 flashing process\u003c\/li\u003e\n\u003cli\u003eCorrection of a verified tune-related issue if the delivered file does not match the submitted order\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThis product uses a proven calibration framework for supported combinations.\u003c\/strong\u003e It does not include one-off calibration development, repeated datalog review, ongoing revisions, or changes for later hardware updates. Builds that need an individualized process should use \u003ca href=\"https:\/\/undisputedracing.com\/\"\u003eUNDSPTD. bespoke tuning\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eFLASHING REQUIREMENTS\u003c\/h2\u003e\n\u003cp\u003eMS41\/MS41.2 files can be flashed with \u003ca href=\"https:\/\/www.bimmertuningtools.com\/product\/ms41-quickflash\/\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eBimmer Tuning Tools MS41 QuickFlash\u003c\/strong\u003e\u003c\/a\u003e. The flashing software and compatible cable are sold separately.\u003c\/p\u003e\u003cp\u003eIf Poverty Built needs a file read or additional ECU identification for your specific order, we will request it. \u003cstrong\u003eYou do not need to submit a full read unless asked.\u003c\/strong\u003e The customer is responsible for stable battery voltage, correct file handling, and a reliable connection during flashing.\u003c\/p\u003e\n\n\u003ch2\u003eCLOSED-COURSE \/ OFF-ROAD USE\u003c\/h2\u003e\n\u003cp\u003eAny option that changes the operation or reporting of emissions-related equipment is intended only for lawful closed-course competition or off-road use. You are responsible for knowing and following all laws that apply to your vehicle and location.\u003c\/p\u003e\n\n\u003ch2\u003ePOVERTY BUILT DISCLAIMER\u003c\/h2\u003e\n\u003cp\u003eBy purchasing this product, you acknowledge that ECU tuning carries risk and that Poverty Built LLC is not liable for engine failure, drivetrain damage, flashing interruption, emissions violations, losses caused by incorrect customer selections, or indirect, incidental, or consequential damages. Results depend on vehicle condition, modifications, fuel, installation quality, and the accuracy of the information submitted with the order. The vehicle must be mechanically sound and properly maintained before and after tuning. Your purchase is also subject to the posted refund and service policies.\u003c\/p\u003e\n\u003ch2\u003eHelpful guides\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/how-tos-for-tuning-bmws\/bmw-ms41-stage-1-1-plus-2-and-3-explained\"\u003eCompare MS41 Stage 1, 1+, 2, and 3\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/how-tos-for-tuning-bmws\/building-the-perfect-naturally-aspirated-e36\"\u003ePlan a naturally aspirated E36 build\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/blogs\/how-tos-for-tuning-bmws\/how-to-flash-your-ms41-equipped-e36-e36-m3-z3-z3m-e39-528\"\u003eFollow the MS41 flashing guide\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Poverty Built","offers":[{"title":"Default Title","offer_id":49280516325664,"sku":"","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0764\/3512\/8608\/files\/ms41_ecu_photo_5523ef08-2fbd-4cb8-ad88-00f6aa9d158a.webp?v=1727476368"}],"url":"https:\/\/povertybuilt.com\/collections\/bmw-m50-m52-s50-s52-tunes.oembed","provider":"Poverty Built","version":"1.0","type":"link"}