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The official kit is expensive but then keeps warranty etc. Remaps are good but when stuck with LCI model with locked ECU whcih has to be removed to do the work and with BMW detecting some now its getting harder to do this. I went for the kit as it game me hassle free upgrade. If I could have gone with evolve switch or superchips I woudl have but both where unable to read / Code my ecu without removing the ecu. Somthing I did not want to go with.
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F30 335i M Sport - now departed
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