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A stage 1 tune using a reputable tuning solution/company will typically increase the power output to 420bhp without any additional modifications and this is typically achieved by an increase in boost pressure
We recommend to ask the BMW dealer the OEM spare parts codes to see if they match the following
Flowbench Data : Stock Airbox 381 CFM : Eventuri 531 CFM (Average Per Airbox)
Dual-pass high performance core with 10 cooling tubes vs
Supersprint Turbo Downpipe (decat downpipe)
Storm Motorwerks V1 Gearknob - BMW E46 M3 | E9X M3 | E39 M5 | Z3 | Z4 Huracan A stage 1 tune usingWhat Barry thinks: "Usually, I prefer an OEM gear knob over the aftermarket alternatives but after fitting a weighted item from Storm Motorworks to my E46 it has completely elevated the shift feel. The weight of the knob takes a lot of the notchiness out of the shifts and the brushed dark grey PVD finish looks great in the cabin." Designed and machined specifically for your BMW, this shift knob is the result of extensive development, from its size and
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