DiabloSport inTune 3 for 2020-2023 6.6 L8T Unlock and Tune Kit
- Mfg Part #
- 8266-R
- SKU
- DIA8266-R
- Brand
-
DiabloSport
Fits 2020 to 2023 Chevrolet Silverado 2500 HD, Silverado 3500 HD, and 1 more make. See every vehicle
- 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")
- 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
- ‘Keep 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
$1,298.99 CAD
Free shipping in Canada
Availability:
Product is backordered at the supplier right now, availability is unknown at this time. Contact us
In stock
At our Burlington, Ontario store: same-day pickup is typically available, or it ships on the date shown.
External warehouse stock
At a partner warehouse: we order it right away and it ships on the date shown.
Manufacturer stock
Available at the manufacturer: we order it for you right away and it ships on the date shown.
Backorder
Backordered at the supplier, availability unknown: we order it right away and allow about 2 weeks before your order ships. Contact us to check.
Universal Fitment
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Description
The DiabloSport inTune 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 inTune i3 handheld tuner, along with DiabloSport’s exclusive locksmith device and harnesses required to unlock your ECM.
Warranty: Manufacturer's 1 Year Warranty
Fits these vehicles
| Year | Make | Model | Submodel | Engine |
|---|---|---|---|---|
| 2020 - 2023 | Chevrolet | Silverado 2500 HD | Custom, High Country, LT, LTZ, WT | 6.6L 401 V8 |
| 2020 - 2023 | Chevrolet | Silverado 3500 HD | Base, High Country, LT, LTZ, WT | 6.6L 401 V8 |
| 2020 - 2021 | GMC | Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 6.6L 401 V8 |
| 2022 - 2023 | GMC | Sierra 2500 HD | AT4, Denali, Pro, SLE, SLT | 6.6L 401 V8 |
| 2020 - 2021 | GMC | Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 6.6L 401 V8 |
| 2022 - 2023 | GMC | Sierra 3500 HD | AT4, Denali, Pro, SLE, SLT | 6.6L 401 V8 |