DiabloSport inTune 3 Unlock and Tune Kit for 2020-2023 Chevrolet Silverado/GMC Sierra 6.6L L8T (8266-R)
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The DiabloSport Trinity 2 9266-R is an unlock-and-tune kit for 2020-2023 Chevrolet Silverado and GMC Sierra trucks with the 6.6L L8T gas engine. It includes the tuner and the required locksmith device and harness to unlock the truck’s ECM.
This kit is designed for 2020-2023 Silverado 2500-3500 and Sierra 2500/3500 trucks with the 6.6L L8T gas engine and 6-speed transmission.
On premium fuel, the listed gains are 28 rwhp and 50 rwtq over stock. Preloaded tunes are available for multiple octane levels, along with transmission shift tune options.
The full-color 5-inch touchscreen provides in-cab monitoring, data logging, and customizable gauge layouts. The kit supports at-home unlocking and tuning.
Want more than the preloaded tunes? Pair this with our Custom Diablo Tune, built for your exact parts and fuel by N2 Speed.
It fits 2020-2023 Chevrolet Silverado 2500-3500 and GMC Sierra 2500/3500 trucks with the 6.6L L8T gas engine and 6-speed transmission.
The listed gains over stock are 28 rwhp and 50 rwtq on premium fuel.
It is legal under the provisions of EPA's Tampering Policy, but it is not legal in California.
Emissions notice: not legal for sale or use in California or on any pollution-controlled vehicle where prohibited. Check your state's rules before ordering.
Fitment help: call 954-507-6261 or email sales@americanmuscleperformance.net with your VIN and we will confirm the right part before you order.