The Go Fast Bit BOV is a hybrid BOV that allows the system to be fully atmospheric or fully recirculated depending on what you're trying to achieve. If you want your BOV to make noise, this unit can be fine-tune to give you that atmospheric BOV sound without causing a CEL, stalling, or your Subaru to run rich.
Besides the noise, why else upgrade the stock Subaru bypass valve? The stock unit is known for leaking and having inconsistent boost pressure that will prevent your Subaru to perform at its best. Moreover the GFB BOV can return the engine to peak boost up to 30% faster than the stock unit when shifting gears.
Overall its a great mod to have for optimal performance.
Vehicle Applications:
- 2002,2003,2004,2005,2006,2007 Impreza WRX
- 2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014 Impreza WRX STi
- 2015, 2016, 2017, 2018, 2019, 2020 WRX STi
- 2006,2007,2008 Forester XT
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