Thread: USTCC E90 Build
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      04-23-2013, 10:25 PM   #97
Rotary Rocket
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Drives: 99 M3 USTCC
Join Date: Dec 2011
Location: California

Posts: 55
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Yes, basically the complications of electronics of a late model.

The E46 is a lot easier to work with. We are using the stock ECU and harness. I might do an AEM standalone later. We are talking with AEM and they are working on a system that will accommodate the throttle by wire and the Vanos. I will keep you all posted.

Quote:
Originally Posted by fdawg4l View Post
What made you give up on the N52? ECU issues?

Since you decided on the S54, what part of the S54 harness did you have to mod if at all? Is it the E46 M3 ECU, or are you using something aftermarket?

I'm just really curious how you got the S54 in there. Did you have to mod the subframe or firewall?
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