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      03-21-2012, 11:42 PM   #192
The Ghost
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Drives: 335i
Join Date: Jun 2011
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Quote:
Originally Posted by Dr_Dirt View Post
Did back to back dyno runs using COBB stage 1 aggressive and then COBB stage 1 aggressive and the ETS 5" IC.
only other mod is the K&N Drop in filter.
I picked up 18whp on lower boost after Installing the ETS 5" IC
Nice! Why did the boost lower though? I'm assuming it has to do with pressure drop. I also noticed similar power gains with the CX FMIC, but without the boost loss.