{"title":"Tuning \u0026 ECU","description":"\u003cp\u003eECU and TCU tuning services for BMW. Unlock more power, faster shifts, and better throttle response.\u003c\/p\u003e","products":[{"product_id":"bmw-stage-1-ecu-tune-zd8-f-g-chassis-multi-series","title":"BMW Stage 1 ECU Tune (ZD8) - F\/G Chassis Multi-Series","description":"\u003ch2\u003eBMW Stage 1 ECU Tune by ZenDA08 \/ ZD8 - Up to 45% More Power, Fully Reversible\u003c\/h2\u003e\n\u003cp\u003eA professional Stage 1 engine ECU tune for BMW F-chassis and G-chassis petrol models, developed by \u003cstrong\u003eZenDA08 (ZD8)\u003c\/strong\u003e - one of the most widely used BMW tuning platforms. Every map is custom-calibrated to your specific vehicle (VIN + engine code), unlocking the power your engine was designed for while preserving factory drive-ability, reliability, and OBD self-diagnostic behaviour.\u003c\/p\u003e\n\u003ch3\u003ePower Gain\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eUp to \u003cstrong\u003e45% power increase\u003c\/strong\u003e over factory output\u003c\/li\u003e\n  \u003cli\u003eSignificant torque improvement across the usable rev range\u003c\/li\u003e\n  \u003cli\u003eSharper throttle response\u003c\/li\u003e\n  \u003cli\u003eOptional tune profiles: economy \/ balanced \/ sport - choose the character you want\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat Makes ZD8 Different\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecurity first\u003c\/strong\u003e - ZD8's calibrations stay within the engine's factory knock\/torque\/fuel safety envelope; no lean-fuel or reckless timing\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStable\u003c\/strong\u003e - over 100,000 BMW owners tuned on this platform\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficient\u003c\/strong\u003e - fuel economy typically \u003cem\u003eimproves\u003c\/em\u003e on part-throttle cruising\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVIN-matched\u003c\/strong\u003e - every map is cut for your engine code, mileage, and market\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e365-day restore anytime\u003c\/strong\u003e - revert to the stock map whenever you need (dealer service, inspection, resale)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMultiple power profiles\u003c\/strong\u003e - switch between Eco \/ Stock \/ Sport \/ Sport+ maps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cp\u003eBMW petrol F-chassis and G-chassis, select the correct chassis at checkout:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1 Series (F20)\u003c\/li\u003e\n  \u003cli\u003e2 Series (F22)\u003c\/li\u003e\n  \u003cli\u003e3 Series (F30 \/ F35)\u003c\/li\u003e\n  \u003cli\u003e3 GT (F34)\u003c\/li\u003e\n  \u003cli\u003e4 Series (F32 \/ F33 \/ F36)\u003c\/li\u003e\n  \u003cli\u003e5 Series (F10 \/ F18 \/ G30 \/ G38)\u003c\/li\u003e\n  \u003cli\u003e5 GT (F07)\u003c\/li\u003e\n  \u003cli\u003e7 Series (G12)\u003c\/li\u003e\n  \u003cli\u003eX3 (F25 \/ G01 \/ G08)\u003c\/li\u003e\n  \u003cli\u003eX4 (F26 \/ G02)\u003c\/li\u003e\n  \u003cli\u003eX5 (F15)\u003c\/li\u003e\n  \u003cli\u003eX6 (F16)\u003c\/li\u003e\n  \u003cli\u003eZ4 (G29)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCompatible engines include the 2.0T (N20, N26, B48), 3.0T inline-6 (N55, B58), and selected 4.4T V8 (N63, S63). Contact us with your VIN before ordering so we can confirm calibration availability for your exact engine and model year.\u003c\/p\u003e\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eOrder with your chassis variant selected\u003c\/li\u003e\n  \u003cli\u003eSend us your VIN + current odometer + any existing modifications\u003c\/li\u003e\n  \u003cli\u003eWe prepare a custom Stage 1 map for your engine\u003c\/li\u003e\n  \u003cli\u003eInstallation via OBD-II (local workshop guidance provided) or bench-flash if required\u003c\/li\u003e\n  \u003cli\u003eRoad test - you receive all power profiles (Eco \/ Stock \/ Sport \/ Sport+) and can switch at any time\u003c\/li\u003e\n  \u003cli\u003eKeep the stock map in reserve; revert any time within 365 days at no additional cost\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003ePetrol engines only - contact us separately for diesel calibrations\u003c\/li\u003e\n  \u003cli\u003eCars with aftermarket hardware (downpipe, intake, intercooler) can be tuned to match - please disclose modifications when ordering\u003c\/li\u003e\n  \u003cli\u003eTune does not affect factory BMW OTA updates or dealer service, but map may be overwritten by a dealer ECU reflash (we will re-apply at no cost within 365 days)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTune Type\u003c\/td\u003e\n\u003ctd\u003eStage 1 ECU calibration (ZenDA08 \/ ZD8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Gain\u003c\/td\u003e\n\u003ctd\u003e15-30% increase over stock (model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTorque Gain\u003c\/td\u003e\n\u003ctd\u003e20-40 Nm increase (model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFuel Type\u003c\/td\u003e\n\u003ctd\u003e91-98 RON recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Engines\u003c\/td\u003e\n\u003ctd\u003eB48, B58, N20, N55, N57, S55 (varies by model)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Chassis\u003c\/td\u003e\n\u003ctd\u003eF-chassis and G-chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReversible\u003c\/td\u003e\n\u003ctd\u003eYes — can be returned to stock calibration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty Impact\u003c\/td\u003e\n\u003ctd\u003eReversible, no permanent ECU modification\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Warranty\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"M-TRI UPGRADE","offers":[{"title":"1 Series (F20)","offer_id":51555741597986,"sku":"MTRI-ECUT-F20","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"2 Series (F22)","offer_id":51555741630754,"sku":"MTRI-ECUT-F22","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"3 Series (F30\/F35)","offer_id":51555741663522,"sku":"MTRI-ECUT-F30","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"3 GT (F34)","offer_id":51555741696290,"sku":"MTRI-ECUT-F34","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"4 Series (F32\/F33\/F36)","offer_id":51555741729058,"sku":"MTRI-ECUT-F32","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"5 Series (F10\/F18\/G30\/G38)","offer_id":51555741761826,"sku":"MTRI-ECUT-F10","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"5 GT (F07)","offer_id":51555741794594,"sku":"MTRI-ECUT-F07","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"7 Series (G12)","offer_id":51555741827362,"sku":"MTRI-ECUT-G12","price":899.0,"currency_code":"NZD","in_stock":true},{"title":"X3 (F25\/G01\/G08)","offer_id":51555741860130,"sku":"MTRI-ECUT-F25","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"X4 (F26\/G02)","offer_id":51555741892898,"sku":"MTRI-ECUT-F26","price":749.0,"currency_code":"NZD","in_stock":true},{"title":"X5 (F15)","offer_id":51555741925666,"sku":"MTRI-ECUT-F15","price":899.0,"currency_code":"NZD","in_stock":true},{"title":"X6 (F16)","offer_id":51555741958434,"sku":"MTRI-ECUT-F16","price":899.0,"currency_code":"NZD","in_stock":true},{"title":"Z4 (G29)","offer_id":51555741991202,"sku":"MTRI-ECUT-G29","price":749.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/4028\/0354\/files\/11-12-bmw-x4.jpg?v=1776766879"},{"product_id":"zd8-bmw-tcu-transmission-tune-1-2-3-4-5-series-x3-x4-x5-x6","title":"ZD8 BMW TCU Transmission Tune - 1\/2\/3\/4\/5 Series, X3 X4 X5 X6","description":"\u003ch2\u003eZD8 BMW TCU Transmission Tune\u003c\/h2\u003e\n\u003cp\u003eUpgrade your BMW's automatic transmission with the ZD8 TCU tune for noticeably \u003cstrong\u003efaster shifts, improved throttle response, and a sportier driving feel\u003c\/strong\u003e — all without any physical modifications.\u003c\/p\u003e\n\n\u003ch3\u003eWhat You Get\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFaster gear changes\u003c\/strong\u003e — reduced shift times across all driving modes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImproved throttle response\u003c\/strong\u003e — quicker downshifts on demand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmoother power delivery\u003c\/strong\u003e — optimised shift points matched to your engine output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSport+ behaviour enhanced\u003c\/strong\u003e — more aggressive shift logic in dynamic modes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaunch control optimised\u003c\/strong\u003e — improved acceleration off the line (where applicable)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eSelect your BMW model variant and place your order\u003c\/li\u003e\n\u003cli\u003eWe contact you to arrange the tune delivery\u003c\/li\u003e\n\u003cli\u003eProfessional-grade ZD8 calibration is applied to your TCU\u003c\/li\u003e\n\u003cli\u003eEnjoy a transformed driving experience\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eCompatible Models\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSeries\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 Series\u003c\/td\u003e\n\u003ctd\u003eF20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 Series\u003c\/td\u003e\n\u003ctd\u003eF22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 Series\u003c\/td\u003e\n\u003ctd\u003eF30\/F35\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 Series GT\u003c\/td\u003e\n\u003ctd\u003eF34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 Series\u003c\/td\u003e\n\u003ctd\u003eF32\/F33\/F36\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 Series\u003c\/td\u003e\n\u003ctd\u003eF10\/F18\/G30\/G38\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 Series GT\u003c\/td\u003e\n\u003ctd\u003eF07\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6 Series\u003c\/td\u003e\n\u003ctd\u003eF12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 Series\u003c\/td\u003e\n\u003ctd\u003eG11\/G12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX3\u003c\/td\u003e\n\u003ctd\u003eF25\/G08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX4\u003c\/td\u003e\n\u003ctd\u003eF26\/G02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX5\u003c\/td\u003e\n\u003ctd\u003eF15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX6\u003c\/td\u003e\n\u003ctd\u003eF16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cem\u003eNot sure about your model? Send us your VIN and we will confirm compatibility.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWarranty \u0026amp; Safety\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e2-year service warranty. Fully reversible. No permanent changes to your vehicle.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTune Type\u003c\/td\u003e\n\u003ctd\u003eTCU transmission calibration (ZD8)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShift Time Reduction\u003c\/td\u003e\n\u003ctd\u003e30-50% faster gear changes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Transmissions\u003c\/td\u003e\n\u003ctd\u003eZF 8HP (8-speed automatic)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeatures\u003c\/td\u003e\n\u003ctd\u003eFaster shifts, improved throttle response, optimised shift points, enhanced launch control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Chassis\u003c\/td\u003e\n\u003ctd\u003eF-chassis and G-chassis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReversible\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Warranty\u003c\/td\u003e\n\u003ctd\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"M-TRI UPGRADE","offers":[{"title":"1 Series (F20)","offer_id":51559222706466,"sku":"MTRI-TCUT-F20","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"2 Series (F22)","offer_id":51559222739234,"sku":"MTRI-TCUT-F22","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"3 Series (F30\/F35)","offer_id":51559222772002,"sku":"MTRI-TCUT-F30","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"3 Series GT (F34)","offer_id":51559222804770,"sku":"MTRI-TCUT-F34","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"4 Series (F32\/F33\/F36)","offer_id":51559222837538,"sku":"MTRI-TCUT-F32","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"5 Series (F10\/F18\/G30\/G38)","offer_id":51559222870306,"sku":"MTRI-TCUT-F10","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"5 Series GT (F07)","offer_id":51559222903074,"sku":"MTRI-TCUT-F07","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"6 Series (F12)","offer_id":51559222935842,"sku":"MTRI-TCUT-F12","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"7 Series (G11\/G12)","offer_id":51559222968610,"sku":"MTRI-TCUT-G11","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"X3 (F25\/G08)","offer_id":51559223001378,"sku":"MTRI-TCUT-F25","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"X4 (F26\/G02)","offer_id":51559223034146,"sku":"MTRI-TCUT-F26","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"X5 (F15)","offer_id":51559223066914,"sku":"MTRI-TCUT-F15","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"X6 (F16)","offer_id":51559223099682,"sku":"MTRI-TCUT-F16","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"ZD8 Official Website","offer_id":51559223132450,"sku":"MTRI-TCUT-ZD8O","price":759.0,"currency_code":"NZD","in_stock":true},{"title":"Other G-Platform Models","offer_id":51559223165218,"sku":"MTRI-TCUT-OTHE","price":759.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0992\/4028\/0354\/files\/main1_en.jpg?v=1776797354"},{"product_id":"bmw-g-platform-tcu-performance-tune-zd8-remote-obd-flash","title":"BMW G-Platform TCU Performance Tune (ZD8) — Remote OBD Flash","description":"\u003ch2\u003eBMW G-Platform TCU Performance Tune (ZenDA08 \/ ZD8)\u003c\/h2\u003e\n\u003cp\u003eA genuine ZD8 (ZenDA08, Germany) calibration for your BMW \u003cstrong\u003eG-platform 8-speed ZF transmission\u003c\/strong\u003e. Sharper throttle, faster up- and down-shifts, harder torque-converter lock, smoother D-mode. \u003cstrong\u003eOBD-flashed only — no box, no harness, fully reversible.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat the Tune Delivers\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e0.7 s faster 0-100 km\/h\u003c\/strong\u003e (typical) from gear-change calibration alone.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSharper throttle response\u003c\/strong\u003e — pedal map recalibrated, lazy first 30 % gone.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFaster up- \u0026amp; down-shifts\u003c\/strong\u003e — reduced shift time, harder lock-up under load.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBetter launch\u003c\/strong\u003e — higher torque-converter holding pressure for cleaner take-off.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmoother D-mode\u003c\/strong\u003e — verified by customer reviews on the Stage 3 flash.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOBD-flash, fully reversible\u003c\/strong\u003e — no module, no harness, rolls back to factory anytime.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy ZD8\u003c\/h3\u003e\n\u003cp\u003eZD8 GmbH (Germany) is the originator of this calibration. Anti-piracy verified — every flash includes a traceable signature.\u003c\/p\u003e\n\n\u003ch3\u003eG-Platform Chassis Covered\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSedans \/ Coupés:\u003c\/strong\u003e G20 \/ G28 (3 Series), G22 \/ G23 (4 Series), G42 (2 Series), G29 (Z4)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSaloon \/ GT:\u003c\/strong\u003e G30 \/ G38 (5 Series), G32 (6 GT), G11 \/ G12 (7 Series), G16 (8 Series)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSUVs:\u003c\/strong\u003e G08 (X3), G02 (X4), G05 \/ G18 (X5), G06 (X6), G07 (X7)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTransmission:\u003c\/strong\u003e ZF 8HP45 \/ 8HP50 \/ 8HP51 \/ 8HP70 \/ 8HP76 (RWD \u0026amp; xDrive).\u003c\/p\u003e\n\n\u003ch3\u003eHow It's Done\u003c\/h3\u003e\n\u003cp\u003eRemote OBD flash session. You'll plug a supplied OBD adapter into your car; we connect remotely and write the new TCU map. Takes ~30 minutes. No driving, no engine running needed. Everything runs through the OBD-II port — no opening the gearbox, no removing the TCU.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eSend your VIN to confirm chassis code and current TCU revision before ordering.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Not Covered\u003c\/h3\u003e\n\u003cp\u003eThis is a TCU (transmission) tune only — engine ECU is not touched. 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