Stealth Module - Colorado/Canyon LWN 2.8L Duramax (2016-2023)

2016 Colorado 2.8L Duramax

These tuners are legit, 4 days are my install I did have a check engine light for a NoX sensor, related to fuel pressure, which is exactly what this tuner is supposed to adjust. Granted I cleared the light and haven’t had issues sense. Before the tuner I was averaging 16-17mpg and now I am 20-21mpg on average. The throttle response is a night and day difference and I am madly impressed. I don’t feel like I’ve noticed much of a power difference, but it’s definitely there when I need it now with this tuner. Worth the money.

2021 Chevrolet Colorado ZR2 Duramax

Initially wasn’t certain if there was much of a difference between stock and the module. However, after pulling some hills and the transmission never downshifting plus a 2 MPG mileage increase, I am completely sold. EGT’s, oil & trans. temps. unchanged from stock. I was particularly interested in maintaining factory safety parameters. I Would definitely recommend the Stealth module.

Chevy Colorado 2.8 duramax

Only had it on for 1 week but got to pull travel trailer up and down some pretty good hills and this thing made quit the difference in power. Much smoother and more pulling power while saving fuel. Got 14.5 MPG