{"product_id":"cobb-tuning-accessport-ecu-tuner-v3-2015-wrx-sti-forester-xt","title":"Cobb Tuning Accessport ECU Tuner V3 - 2015+ WRX \/ STI \/ Forester XT","description":"\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003ePlug-and-play ECU tuning for \u003cstrong\u003e2015-2021 Subaru WRX \u0026amp; STI\u003c\/strong\u003e and \u003cstrong\u003e2014-2018 Forester XT\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCOBB Off-The-Shelf (OTS) maps for stock and lightly modified builds - noticeable power, torque, and throttle response\u003c\/li\u003e\n\u003cli\u003eFull-color in-cabin display - monitor up to 6 live parameters at once (boost, AFR, throttle, and more)\u003c\/li\u003e\n\u003cli\u003eStores up to 100 calibrations - switch OTS or custom tuner maps instantly\u003c\/li\u003e\n\u003cli\u003eRead\/clear DTCs, data-log up to 10 hours, measure 0-60 and quarter-mile\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCARB EO# D-660-43 - 50-state legal\u003c\/strong\u003e, including California\u003c\/li\u003e\n\u003cli\u003eIncludes everything for a tool-free OBD-II install; reverts to stock in one menu tap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\u003c!-- splitnew --\u003e\n\u003ch2 style=\"text-align:center;\"\u003eUnlock Your Subaru's Boxer - No Wrenches Required\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eCOBB Accessport V3\u003c\/strong\u003e is the world's best-selling, most flexible ECU upgrade for Subaru. It replaces Subaru's conservative factory calibration with COBB's Off-The-Shelf maps to deliver more power and torque, sharper throttle response, and reduced turbo lag - all through the OBD-II port in minutes. Uninstalling is just as easy: a single menu selection returns the ECU to its exact factory state.\u003c\/p\u003e\n\u003cp\u003eThe Accessport mounts in-cabin, taps your vehicle's data bus, and gives you a full-color gauge display for boost, AFR, throttle, and up to six live parameters at once. Data logging stores up to 10 hours of engine data for tuner review, and you can store up to 100 calibrations to switch between maps instantly.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#fff8db;border:1px solid #ffe58f;border-radius:6px;padding:14px 16px;margin:18px 0;\"\u003e\n\u003cstrong\u003e⚠ Fitment - AP3-SUB-004.\u003c\/strong\u003e Fits \u003cstrong\u003e2015-2021 Subaru WRX\u003c\/strong\u003e (FA20DIT), \u003cstrong\u003e2015-2021 Subaru STI\u003c\/strong\u003e (EJ257), and \u003cstrong\u003e2014-2018 Forester XT\u003c\/strong\u003e (FA20DIT). This is the correct Accessport for these platforms - verify your model and year before ordering.\n\u003c\/div\u003e\n\n\u003cdiv style=\"display:flex;flex-wrap:wrap;flex-direction:row;align-items:center;gap:24px;margin:28px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 320px;min-width:280px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/cobb-accessport-v3-subaru-kit-contents.jpg\" alt=\"COBB Accessport V3 Subaru kit contents - device, case, cables, mount\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 320px;min-width:280px;\"\u003e\n\u003ch3 style=\"margin-top:0;\"\u003eReal Gains, Backed by COBB's Maps\u003c\/h3\u003e\n\u003cp\u003eCOBB's Off-The-Shelf maps are professionally developed for each Subaru platform and fuel grade. On the turbocharged WRX, STI, and Forester XT, Stage 1 delivers meaningful mid-range torque and horsepower over stock on pump gas - with the biggest improvement felt as reduced lag and stronger roll-on response. Stage 2 and higher unlock more when paired with supporting hardware (intake, exhaust, etc.).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eStage 1 Power Gains by Model\u003c\/h3\u003e\n\u003cp\u003eBecause the WRX, STI, and Forester XT run different engines, Stage 1 gains vary by model, transmission, and fuel grade. Figures below are typical Stage 1 gains on an otherwise stock car running a COBB Off-The-Shelf map:\u003c\/p\u003e\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:14px 0;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background:#f2f2f2;\"\u003e\n\u003cth style=\"padding:10px;text-align:left;border:1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\u003cth style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e91 Octane\u003c\/th\u003e\n\u003cth style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e93 Octane\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e2015-2021 WRX (6MT)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e\u003cspan style=\"color:#0a7d28;\"\u003e+10-20 whp \/ +20-35 wtq\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e\u003cspan style=\"color:#0a7d28;\"\u003e+15-25 whp \/ +30-45 wtq\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f7f7;\"\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e2015-2021 WRX (CVT)\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e\u003cspan style=\"color:#0a7d28;\"\u003e+10-15 whp \/ +25-35 wtq\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e\u003cspan style=\"color:#0a7d28;\"\u003e+15-20 whp \/ +30-40 wtq\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e2015-2021 STI\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e\u003cspan style=\"color:#0a7d28;\"\u003e+5-15 whp \/ +20-30 wtq\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\"\u003e\u003cspan style=\"color:#0a7d28;\"\u003e+10-20 whp \/ +25-40 wtq\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f7f7f7;\"\u003e\n\u003ctd style=\"padding:10px;border:1px solid #ddd;\"\u003e2014-2018 Forester XT\u003c\/td\u003e\n\u003ctd style=\"padding:10px;text-align:center;border:1px solid #ddd;\" colspan=\"2\"\u003e\n\u003cspan style=\"color:#0a7d28;\"\u003e+11% HP \/ +17% TQ peak\u003c\/span\u003e - up to +23% HP \/ +23% TQ at 3,000 rpm (Stage 1, 93 oct, COBB-tested)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size:13px;color:#666;\"\u003eWheel-horsepower (whp) and wheel-torque (wtq) figures are typical Stage 1 gains and will vary with fuel, altitude, atmospheric conditions, and vehicle condition. Forester XT figures as tested by COBB on 2014-2015 FXT vehicles. View full dyno charts and per-map power gains in \u003ca href=\"https:\/\/cobbtuning.atlassian.net\/wiki\/spaces\/PRS\/pages\/36274402\/AP3-SUB-004+USDM+ADM\" target=\"_blank\" rel=\"noopener\"\u003eCOBB's AP3-SUB-004 map notes\u003c\/a\u003e. Stage 2 and higher unlock more with supporting hardware.\u003c\/p\u003e\n\n\u003ch3\u003eECU Map Options\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 0\u003c\/strong\u003e - baseline recalibration, no hardware mods required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1 (91 \/ 93 Oct.)\u003c\/strong\u003e - full power optimization on stock hardware for each fuel grade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 2+\u003c\/strong\u003e - additional gains with supporting bolt-on hardware\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom maps\u003c\/strong\u003e - load tunes from any COBB-licensed Pro Tuner for modified builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;flex-wrap:wrap;flex-direction:row-reverse;align-items:center;gap:24px;margin:28px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 320px;min-width:280px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/cobb-accessport-v3-subaru-device-front.jpg\" alt=\"COBB Accessport V3 full-color in-cabin gauge display\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 320px;min-width:280px;\"\u003e\n\u003ch3 style=\"margin-top:0;\"\u003eFull-Color In-Cabin Gauge Display\u003c\/h3\u003e\n\u003cp\u003eMount the Accessport V3 where you can see it. The high-resolution color screen shows boost, AFR, throttle, and up to six live parameters at once, with race, street, and dyno gauge layouts. Data logging captures up to 10 hours of engine data for tuner review.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eAccessport V3 Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge full-color display\u003c\/strong\u003e - high-resolution, customizable gauge layout (race, street, dyno modes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100 map storage\u003c\/strong\u003e - load OTS maps or custom tunes from any COBB-licensed tuner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDTC read\/clear\u003c\/strong\u003e - diagnose and reset engine codes without a dealer visit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData logging\u003c\/strong\u003e - record multiple channels simultaneously, up to 10 hours stored\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePerformance measuring\u003c\/strong\u003e - 0-60 mph, 60-foot, quarter-mile ET and trap speed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShift light\u003c\/strong\u003e - custom RPM warning for perfect shifts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterchangeable faceplates\u003c\/strong\u003e - multiple bezel colors available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessport Manager\u003c\/strong\u003e - free PC\/Mac software for map management and datalog download\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv style=\"display:flex;flex-wrap:wrap;flex-direction:row;align-items:center;gap:24px;margin:28px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 320px;min-width:280px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/cobb-accessport-v3-subaru-ports-detail.jpg\" alt=\"COBB Accessport V3 ports and connections detail\" style=\"width:100%;height:auto;border-radius:8px;display:block;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 320px;min-width:280px;\"\u003e\n\u003ch3 style=\"margin-top:0;\"\u003e50-State Legal (CARB EO# D-660-43)\u003c\/h3\u003e\n\u003cp\u003eThis Accessport carries a CARB Executive Order (D-660-43) and is legal for sale and use on emissions-controlled vehicles in all 50 states - including California - when installed per COBB's application guide for your vehicle.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eEmissions\u003c\/h3\u003e\n\u003cp\u003e50-state legal (CARB EO# D-660-43) when used per COBB's application guide for your vehicle.\u003c\/p\u003e\n\u003cp style=\"color:#cc0000;\"\u003e\u003cstrong\u003eWarning: Installing this Accessport over anything other than OEM or COBB software may result in ECU failure. Designed to tune stock, unmodified ECUs only.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eFits: \u003cstrong\u003e2015-2021 Subaru WRX \u0026amp; STI, and 2014-2018 Forester XT.\u003c\/strong\u003e Verify your exact model and year against COBB's application guide before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes one Accessport cover WRX, STI, and Forester XT?\u003c\/strong\u003e\u003cbr\u003eYes - AP3-SUB-004 supports all three platforms (2015-2021 WRX \u0026amp; STI, 2014-2018 Forester XT). It reads your vehicle and loads the correct maps.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I return my car to stock?\u003c\/strong\u003e\u003cbr\u003eYes - the Accessport includes an Uninstall option that reverts the ECU to exactly the factory calibration. You can also resell the Accessport after uninstalling.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need a custom tune, or will the included maps work?\u003c\/strong\u003e\u003cbr\u003eThe pre-loaded Off-The-Shelf maps work great for stock or lightly modified cars on the supported octane grades. Custom maps are available through COBB-licensed Pro Tuners for heavily modified builds.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it really legal in California?\u003c\/strong\u003e\u003cbr\u003eYes - it carries CARB EO# D-660-43, making it 50-state legal when installed per COBB's guide.\u003c\/p\u003e\n","brand":"Cobb","offers":[{"title":"Default Title","offer_id":54854467420479,"sku":"cobbAP3-SUB-004","price":677.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/cobb-accessport-v3-subaru-wrx-sti-forester-xt.jpg?v=1785711591","url":"https:\/\/www.stickerfab.com\/en-nl\/products\/cobb-tuning-accessport-ecu-tuner-v3-2015-wrx-sti-forester-xt","provider":"StickerFab","version":"1.0","type":"link"}