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Tuners For 2018 Sierra "Hybrid" Truck?

beerpilot

By beerpilot
in Modifications & Accessories

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3tspapat Enthusiast

3tspapat

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Old thread but in case anyone is following, BBP has tuned at least 1 eAssist Sierra. So if anyone is interested, BBP can tune you.

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3tspapat
3tspapat

I contacted black bear late last year. They said they could tune the engine just not the transmission.    People also said no CAI for the eAssist. Well I made one fit. It’s jist a demand thi

3tspapat
3tspapat

Drive in L7. That will shut off V4/AFM and also start stop feature. I do this consistently and only set to “D” if I’ll be on the highway for prolonged trips. Even short trips I leave in L7. At 70 mph

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  • 2 weeks later...
3tspapat Enthusiast

3tspapat

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Any CAIs will work. You just have to either make a bracket to rotate/move the coolant overflow reservoir, relocate the reservoir, or custom the intake pipe so that they don't obstruct with one another. 

 

If you just want to turn off the V4 mode and auto start/stop, then the range is all you need. If you want anything beyond that then a tune is best. I only know of BBP that has tuned eAssists. It's not supported by the others.

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