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Originally Posted by nab_04
what if I tune up the ecu (re-maping) the x5 4.8 ......do you think it will still go faster??? vs the stock x6 v6?
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As your engine don't have Turbo, it will only bring you a small hp increase and Torque. That is the problem with atmospherical engines. For X6 Twin turbo engines, or X5 Diesel engines, it brings you a very appreciable increase.
Buy a X6 5.0i !
