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dump valve

1604 Views 4 Replies 5 Participants Last post by  Guack007, 
A
Hi,
Will anyone advise fitting an aftermarket dumpvalve on a sti (new age model) if so,which one ??
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Dump valve= routing back to intake.
BOV= atmospheric release (phsssssshhh sound)

*atmospheric BOV's can cause idleing problems on MAF metered engines.
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