BMW 3-Series (E90 E92) Forum - View Single Post - 2007 Engine Tech: How the N54 works (must read!!!)

Padfan9 · 07-21-2011, 11:11 PM

Does anyone know why it shows there are 2 BOV's for the N54....I may have read that wrong...when buying an aftermarket BOV, you only buy one, so the stock is just a wastegate right? or bypass valve?

07-21-2011, 11:11 PM	#89
Padfan9 Sergeant 802 Rep 2,509 Posts Drives: 2022 M8 Competition Coupe Join Date: Jun 2011 Location: San Diego iTrader: (2)	Does anyone know why it shows there are 2 BOV's for the N54....I may have read that wrong...when buying an aftermarket BOV, you only buy one, so the stock is just a wastegate right? or bypass valve?
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