bmw 335i tial blow off valve

adrian_j · 11-16-2021, 01:19 AM

hey i just bought a chargepipe and tial BOV for my 335i, it didnt come with any vacuum lines im just wondering what size of vacuum line i need and if ill need any adapters for the vacuum line, thank you

Dave92N54 · 11-16-2021, 07:59 AM

You have a few options but you need a 1/4" vacuum line for the BOV.

There are a few adapters on the market, I believe most of us here (myself included) use the BMS adapter. Nothing hard to install.

Other option would be removing your intake manifold, cutting the original nipple off and then tapping it and adding a 1/4" nipple. The adapters all work perfectly fine but theoretically this would be the ideal method, as it's a direct reference from the manifold where the adapters usually aren't.

11-16-2021, 01:19 AM	#1
adrian_j Private 15 Rep 79 Posts Drives: 2008 335i sedan Join Date: Apr 2021 Location: Vancouver Canada iTrader: (0) Garage List 2008 bmw 335i [0.00]	bmw 335i tial blow off valve hey i just bought a chargepipe and tial BOV for my 335i, it didnt come with any vacuum lines im just wondering what size of vacuum line i need and if ill need any adapters for the vacuum line, thank you
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11-16-2021, 07:59 AM	#2
Dave92N54 Major 538 Rep 1,173 Posts Drives: 09 E92 335i 6MT Join Date: Nov 2020 Location: Westminster, Maryland iTrader: (0) Garage List 2009 BMW 335i [10.00]	You have a few options but you need a 1/4" vacuum line for the BOV. There are a few adapters on the market, I believe most of us here (myself included) use the BMS adapter. Nothing hard to install. Other option would be removing your intake manifold, cutting the original nipple off and then tapping it and adding a 1/4" nipple. The adapters all work perfectly fine but theoretically this would be the ideal method, as it's a direct reference from the manifold where the adapters usually aren't. __________________ 09 E92 335i 6MT / Alpine White / Coral Red / VRSF 7.5" / VRSF DCI / VRSF Catless Downpipes / VTT Charge Pipe / Turbosmart RacePort Gen V / RB OEM Billet Turbos / CD919 Custom Tune / Bilstein PSS9s
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