Quote:
Originally Posted by chbrules
BOV != performance gain
They simply relieve pressure on the engine when you suddenly let off the gas or upshift at a higher RPM. All turbo cars have them installed stock.
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No, no they don't. The 335 does not. There is no performance benefit to having an aftermarket bov on a car that came with DVs. It's just for noise.
If you want to upgrade your plastic DV (I'm not sure if the 335 has diaphragm or piston style) upgrade them to aluminum, piston style DVs. Like the ones from Stratmosphere. I'm sure Forge will be coming out with some too.