Just a though. While its on a stand, Address the engine harmonics/oil pump nut issue and put in a good metal impellered waterpump. There are a couple ways to address this and it depends on a few factors to what level of countermeasures to use. I've read its not a typical issue with street driven cars, but if you spend some time above 6k rpm where the harmonics get a bit nasty, it would be worth doing. Not sure what your plans are for the clutch and flywheel setup. if you go to a single mass or lightwhieght flywheel setup then for sure.

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2005 X5 3.0, 6MT, Alpine White on Truffle Brown, Sport, Preim, and Cold Weather, Alpina Stainless Headers, AFe Intake, UUC SSK, OEM 87's, 3.64 Differential Swap,Performance Modified Euro 2 Tune, UUC LTW Flywheel and HD clutch, Bilstein B12 Suspension kit
Future mods ZHP/Schrick Cam Shaft upgrade, Operation code name:Doppelschrauben-Kompressor

Wife's Ride: 2011 e70 X5 351 M///Sport.

Also in the fold: 2004 X3 3.0, 6MT, Black Sapphire on Terracotta, port, Premium, Cold Weather.