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no loss of power, all pipes are attched and secure, but when i hit boost i get what i can only describe as a vacum cleaner sucking noise under bonnet, sounds right under dash. sounds great, but wasnt there before, not moved anything. any ideas.
no loss of power, car has fmic and spf air fillter dump valve and boost gauge in dash so vacumm pipe does run through bulk head, but gauge is working fine
Last edited by mje_wrx; 14 March 2009 at 07:17 PM.
Reason: spelling
is your boost gauge dash mounted? does the gauge read correct boost? just thinking with you saying it sounds like its coming from under dash, that maybe there is a leak to the gauge, u wouldnt feel any differance in power but it will read wrong boost.