E46Fanatics - View Single Post - My search for more NA power (Dyno time)
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Old 07-26-2010, 07:27 PM   #30
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Well, I've been told that it helps a lot with low end torque. I think it can be tuned out.

Originally Posted by McSpeed View Post
didn't I hear that dip was from the DISA aka idle control valve flap action? If you haven't yet you could try unplugging it during a dyno run and see if things smooth out.
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