{"product_id":"flashpaq-for-2020-2023-6-6l-l8t-gas-trucks-with-unlock","title":"Superchips Flashpaq Tuner with ECM Unlock for 2020-2023 Silverado and Sierra 2500HD 3500HD 6.6L L8T Gas - 2866-F","description":"\u003cp\u003eThe Superchips 2866-F is a tuner kit for 2020-2023 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L L8T gas V8. It pairs the Flashpaq handheld with the locksmith unlock device and an ECM harness, so you unlock the factory-locked ECM with the module still in the truck and tune in the driveway.\u003c\/p\u003e\u003cp\u003ePreloaded tunes for 87 octane and premium deliver up to 28 rear-wheel horsepower and 50 lb-ft on premium, with a performance calibration for the 6-speed automatic. On a truck that tows, the transmission tune and the added torque are the improvements you notice first.\u003c\/p\u003e\u003ch2\u003eVehicle compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e2020-2023 Chevrolet Silverado 2500HD and 3500HD with the 6.6L L8T gas V8\u003c\/li\u003e\n\u003cli\u003e2020-2023 GMC Sierra 2500HD and 3500HD with the 6.6L L8T gas V8\u003c\/li\u003e\n\u003cli\u003eThe same unlock hardware is sold with DiabloSport handhelds and monitors: \u003ca href=\"\/products\/predator-2-for-20-23-6-6l-gas\"\u003ePredator 2 7266-R\u003c\/a\u003e, \u003ca href=\"\/products\/diablosport-intune-3-unlock-and-tune-kit\"\u003einTune i3 8266-R\u003c\/a\u003e and \u003ca href=\"\/products\/diablosport-trinity-2-gm-6-6l-l8t-gas-unlock-and-tune-kit\"\u003eTrinity 2 9266-R\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTuning and adjustment features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eECM unlock hardware included; unlock and tune at home without removing the ECM\u003c\/li\u003e\n\u003cli\u003ePreloaded 87 octane and premium tunes with a performance 6-speed TCM tune\u003c\/li\u003e\n\u003cli\u003eSpeedometer correction for tire size and final drive ratio\u003c\/li\u003e\n\u003cli\u003eRev limiter, idle RPM in Drive and Neutral, speed limiter removal, throttle sensitivity\u003c\/li\u003e\n\u003cli\u003eRecall last drive mode, front and rear TPMS thresholds\u003c\/li\u003e\n\u003cli\u003eService functions: transmission adaptive relearn, crank position sensor relearn, intake filter monitor control\u003c\/li\u003e\n\u003cli\u003eLive data monitoring, read and clear trouble codes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat is in the box\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFlashpaq handheld\u003c\/li\u003e\n\u003cli\u003eLocksmith unlock device\u003c\/li\u003e\n\u003cli\u003eECM unlock harness\u003c\/li\u003e\n\u003cli\u003eOBD-II and USB cables\u003c\/li\u003e\n\u003cli\u003eInstructions\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation and limitations\u003c\/h2\u003e\u003cp\u003eThe ECM must be unlocked once before the Flashpaq can tune the truck. Connect the locksmith through the supplied harness, complete the unlock, then tune through the OBD-II port. After that the locksmith and harness are no longer needed. The device locks to one VIN, and once the ECM has been unlocked the unit is non-returnable.\u003c\/p\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePart number: 2866-F\u003c\/li\u003e\n\u003cli\u003eBrand: Superchips\u003c\/li\u003e\n\u003cli\u003eWarranty: 1 year manufacturer warranty\u003c\/li\u003e\n\u003cli\u003eCountry of origin: United States\u003c\/li\u003e\n\u003cli\u003ePackaged size: 6 x 5 x 3 in, 2 lb\u003c\/li\u003e\n\u003cli\u003eUPC: 810065217417\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\u003ch3\u003eDo I have to pull the ECM?\u003c\/h3\u003e\u003cp\u003eNo. The harness connects to the ECM in the truck and the unlock is done in the driveway.\u003c\/p\u003e\u003ch3\u003eHow much power does it add?\u003c\/h3\u003e\u003cp\u003eSuperchips publishes up to 28 rwhp and 50 lb-ft over stock on premium fuel.\u003c\/p\u003e\u003ch3\u003eCan I return it after unlocking?\u003c\/h3\u003e\u003cp\u003eNo. The ECM unlock cannot be undone, so once it has been performed the kit is not returnable. The tune itself can be returned to stock.\u003c\/p\u003e\u003ch3\u003eIs this for the Duramax?\u003c\/h3\u003e\u003cp\u003eNo. This kit is for the 6.6L L8T gas engine only.\u003c\/p\u003e","brand":"SuperChips","offers":[{"title":"Default Title","offer_id":53686450454846,"sku":"2866-F","price":813.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/9301\/0238\/files\/7988f3fa9744353be427f56bd7d3e8693c389e74.png?v=1794377217","url":"https:\/\/tunerstore.com\/products\/flashpaq-for-2020-2023-6-6l-l8t-gas-trucks-with-unlock","provider":"The Tuner Store","version":"1.0","type":"link"}