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Any larger size except stock would cause REP

Both. Tested in 6th gear on dyna. Even with the stock speed limiter, just tire size correction, it triggered REP.

L84 - 2019 Silverado - Reduced engine power with tire size changed (34") and speed limiter set (134). Has anyone encountered this?

Hi All,

I?m searching for the original OEM calibration file for the GM LS376/480 with 4L70-E, Crate Engine Controller Kit # 19354330 from Chevrolet Performance. The ECM part # 19354331. Please let...