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Old 04-07-2012, 10:32 PM   #8
Registered User
Join Date: Sep 2011
Location: Portland, OR
Posts: 597
My Ride: 2002 E46
Looks like you can buy one here

or why not go with a slightly massaged S85 M5 engine? I don't know what state of tune your car is in now, but vs the MSRP for that kit above, you could easily get a nice S85 & a transmission & a beefed up diff. You could get a daily driver 500hp without having to refuel at the industrial solvents & reagents plant. It weighs within 50lb of the S54 engine and I hear it bolts right up to the E90 tranny. You get an 8250 redline and everything is OEM quality and you don't get the ricey blow off valve sounds either. Unless you like that. Granted this is all sideline speculation from someone who never intends to exceed the 200hp limit of my ZF tranny.
ChicagoRY is offline   Reply With Quote