The S50B30US was a 3.0 L version, which powered the US-spec E36 M3. Power was 240 hp (179 kW). Unlike the RoW S50, this engine used a regular M50 intake in lieu of the individual throttle body set up and hydraulic valve lifters in lieu of solid ones. The cylinder head and the VANOS system are also different on the US M50 versus the RoW model; again having more in common with the regular M50 than the Euro S50.
* 1995 E36 M3
*edited agian*wiki said:S52B32US
The US counterpart shares some of the European version's internal dimensions but uses the more restrictive M52B28 intake manifold and used a cylinder head design more akin to the M52 than to its more powerful European equivalent. Power for the S52B32US is 240 hp (180 kW), and the maximum permissible engine speed was in the 6500 rpm range since it used hydraulic instead of solid lifters.
* 1996-1999 US-spec E36 M3
* 1996-2000 US-spec E36/7/8 M Roadster/M Coupe
Correct, I don't even recommend turbo chargers. Personal preference would be a Super Charger. I have one, AA did a beautiful job, And my m3 is defiantly a car killer.no reason to use 2 when 1 will do just fine. You really can't use more than 350Hp on the road anyway unless you are going in a semi staight line. And where is the fun in that?