I'm looking to purchase a BOV and would be lying if I said I didn't want some noise (JDM YO) when venting to the atmo hence why Tial is not on the list.
Synapse BOV
I've had experience with synapse on n54 and they sound great but has questionable reliability from the last time I checked. Regardless, I can still source it direct from Synapse Engineering.
Turbosmart Raceport BOV
Have heard it on one n54 1er and it sounded odd - a short weird sound. Not sure if installation was incorrect but this bov was hyped up and didn't meet my expectation.
If anyone has had experience from either BOVs or suggestions for others, please let me know
Will most likely be pairing the bov with either a VRSF CP or COBB CP