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  1. ValianceLT4

    Tune needed for Lower Pulley / SC Lid?

    Hello. for a CT-5 BW, If I just wanted to get a larger Lower Pulley and a SC Lid, would I need to get it tuned or would the ECM be able to adjust for it on its own? I know the stock ECM has a ton of room for self-adjustment, but I want to be sure before I take that route.
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