BMW 3-Series (E90 E92) Forum - View Single Post - Loud exhaust sound in engine bay, no power 2011 335d

TheBigSwede · 07-08-2020, 04:11 PM

To be clear, the differential pressure hoses have a 7mm I.D. vs 3.5mm I.D. of vacuum hose. Took me a bit of googling to source proper size that could handle the high temps.

07-08-2020, 04:11 PM	#7
TheBigSwede Enlisted Member 6 Rep 49 Posts Drives: 2009 335d m-sport- JR stg 2 Join Date: May 2015 Location: GTA iTrader: (0)	To be clear, the differential pressure hoses have a 7mm I.D. vs 3.5mm I.D. of vacuum hose. Took me a bit of googling to source proper size that could handle the high temps.
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