careful using a supercharger that was part of the engine design. that V engine probably has a lower compression ratio than the one in your car. i would err on the side of caution and use the smaller supercharger since it would mean it blows less PSI throught your engine.

unless you are planning on reducing your compressino to accomodate a blower.

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'O=00=O'
bmw 2002.
long live the legend