BMW M4: STAGE 1 523WHP
Dynojet — max power 523.95 hp at 6,050 rpm, max torque 534.83 lb-ft at 4,080 rpm. AMR Performance Stage 1 ECU tune, no other modifications. 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
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