jaydut

My 02 wrx has been decatted and when you let the revs drop ie slowing do for junction it gargles like mad,while this make my car sound like an overtuned monster (which is nice) im told this is a result of the decat but cant help thinkin my car is garglin on optimax which is costin me mo money at the pumps am i right or am i being a silly boy