You should link you HIDP build. Always loved this build!

FXR's in my E39 made a nice difference but its a bigger task (Budget for install) to do something on my E70 =/

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E70 LCI 35D

E90 LCI 328i xDrive
E39 '00 528i Sport/5sp
E28 '88 535is
E84 35ix M packaged
E38 '01 740i Sport
E39 '02 M5