SKU: 14951648087

inTune 3 for 2020-2023 6.6 L8T Unlock and Tune Kit Unlock and Tune your 2020-2023 6.6L L8T powered Silverado or Sierra, in your driveway with inTune 3! DiabloSport

Sale price$368.98 Regular price$409.98
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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For Your Every Summer RSVP, with Code: SUMMER15

Description

inTune 3 for 2020-2023 6.6 L8T Unlock and Tune Kit Unlock and Tune your 2020-2023 6.6L L8T powered Silverado or Sierra, in your driveway with inTune 3! DiabloSportThe Diablo Sport in Tune i3 8266 R Kit is the breakthrough tuning solution for 2020 2023 GM trucks equipped with the 6. 6L L8T gas engine These trucks shipped with locked PCMs that blocked tuning until now. This complete kit includes the powerful in Tune i3 handheld tuner, along with Diablo Sport's exclusive locksmith device and harnesses required to unlock your ECM. Once unlocked, the in Tune i3 unleashes dyno tested tunes for 87, 91, and 93 octane

The Diablo Sport in Tune i3 8266-R Kit is the breakthrough tuning solution for 2020-2023 GM trucks equipped with the 6.6L L8T gas engine These trucks shipped with locked PCMs that blocked tuning-until now.

This complete kit includes the powerful in Tune i3 handheld tuner, along with Diablo Sport's exclusive locksmith device and harnesses required to unlock your ECM.

Once unlocked, the in Tune i3 unleashes dyno-tested tunes for 87, 91, and 93 octane fuels, delivering gains of up to 28 rear-wheel horsepower and 50 rear-wheel torque over stock

Alongside raw power, the tunes refine drivability with better throttle response, improved part-throttle performance, and smoother shifting, transforming how your truck feels on the road or under load

Beyond the preloaded calibrations, the i3 also provides a wide range of user-adjustable parameters, including tire size adjustments, speed limiter removal, throttle sensitivity, and more

Added features for these newer GM platforms include last mode recall, so your truck always remembers your preferred driving settings

For GM truck owners ready for a true performance upgrade, the in Tune i3 8266-R Kit delivers proven horsepower and torque gains with the drivability improvements your 6.6L L8T deserves

  • 2020-2023 Silverado 2500/3500 6.6 L8T
  • 2020-2023 Sierra 2500/3500 6.6 L8T
  • 28 rwhp over stock on premium fuel
  • 50 rwtq over stock on premium fuel
  • Tunes for 87 octane, and premium fuel provided
  • ECM unlock included!
  • Unlock and Tune, at home!
  • Preloaded tunes for multiple octane levels
  • Support for 6.6L L8T applications with 6 speed Transmission
  • Throttle Boost setting for adjustable throttle feel
  • Adjust speedometer for larger tires (26-38 Inch)
  • Calibrate speedometer for gear change (3.42-5.13)
  • Remove speed limiter for increased top speed
  • Adjust engine rev limiter for increased RPM range (+/- 400 RPM)
  • Adjust engine idle speed in Park/Neutral and Drive
  • РІР‚пїЅKeep Drive Mode Setting' allows you to select a drive mode and it will remember that mode next time you start the truck!
  • Adjust fueling at WOT in multiple RPM ranges
  • Calibrate spark timing at WOT across multiple RPM ranges
  • Front/Rear TPMS threshold adjustment
  • Air Filter Monitor system control
  • Transmissions adaptive relearn

Details:

  • Fuel Type: Gas
  • CARB (California) Compliant: No
  • Body Material: ABS
  • 5 Volt Data Logging Inputs: Yes
  • 50 State Legal: No
  • AC Adapter: No
  • Accepts Custom Tunes From CMR: Yes
  • Case Included: No
  • Color Touch Screen Display: Yes
  • Custom Tuning: Yes
  • Data Logging: Yes
  • Emission Code: 7
  • Erases Fault Code: Yes
  • Grade Type: Performance Regular
  • Instruction Manual Included: Yes
  • Performance Tunes: Yes
  • Personal Computer and Mac Compatible: Yes
  • Product Type: Handheld Tuner
  • Software Included: Yes
  • Speedometer: Yes
  • Sub Category: Engine Service
  • Systems Covered: Transmission Engine
  • Upgradable: Yes
  • Wi-Fi Updates: Yes
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 14951648087

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Naomi Joshi
Waukegan, US
★★★★★ 5
Most comfy sandals my toddler owns
Size: 6 Toddler, Color: Navy
Very comfortable and true to size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
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Aliston Jewell
Lowell, US
★★★★★ 5
Perfect toddler summer sandal!
Size: 6 Toddler, Color: Navy, Size: 6 Toddler, Color: Navy
My toddler loves them. Even though they are a little big for him (which I meant to buy a bigger size) the adjustable strap allows me tighten them enough so he doesn’t slide. Color goes with everything! Perfect summer shoe!
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Reviewed in the United States on July 9, 2025
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Verified Purchase
LindseyLove
Natrona Heights, US
★★★★★ 4
I liked them, toddler did not
Size: 7 Toddler, Color: Navy
I thought these were cute shoes. They were sturdy, protective, and flexible for little walkers. And they were pretty soft on the inside to wear without socks. Unfortunately, my two year old did not agree. He cried "don't like it" and immediately ripped them off every time I tried them on him. Maybe it's just my picky son. TTS/half size big.
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Reviewed in the United States on April 24, 2024
A
Verified Purchase
Amazon Customer
Omaha, US
★★★★★ 5
Perfect for Toddlers
Size: 8 Toddler, Color: Navy
These are great for toddlers! Keeps my grandson’s toes safe yet cooler than sneakers for the summer. He loves them!
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Reviewed in the United States on June 11, 2026
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Sashunia
Louisville, US
★★★★★ 5
Great looking shoe!
Size: 11 Little Kid, Color: Tan, Size: 11 Little Kid, Color: Tan
We got these sandals specifically for our Caribbean vacation over thanksgiving break. They run true to size but I did get them one size bigger to hopefully last for next summer as well. They look great on and go with everything! My son said they feel very comfortable on his feet and he likes easy on/off due to Velcro closure.
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Reviewed in the United States on December 7, 2025

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