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      10-05-2012, 09:19 AM   #23
mapleridge
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Drives: E90 N52 AT
Join Date: Apr 2011
Location: Vancouver, BC

Posts: 2,682
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Quote:
Originally Posted by CombatNinja View Post
Sure you can use downpipes, right after you execute an N54 swap.

This piece is just a fix for N54 guys running catless downpipes. It tricks the system into thinking everything is normal with the oxygen sensors. Should work on our cars but consult BMS. I know the same concept won't work on the N55 for some reason.

FWIW, I predict 12whp peak and +20whp above 6000rpm once these are on the dyno.
Djapex and another member are running the fix and it works for them.
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