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BMW M4: STAGE 1 523WHP
Had some fun dialing in Ron’s BMW M4 pumping out a solid 523whp with just our Stage 1 tune! No other modifications. Modifications: AMR Performance ECU tune
Had some fun dialing in Ron’s BMW M4 pumping out a solid 523whp with just our Stage 1 tune! No other modifications. Modifications: AMR Performance ECU tune