uppipe leak???

[wrx555]

Hey guys...
I think I have a leak somewhere...
The reason I say this is because I can hear a louder spooling sound at certain revs, around 2,500 to 4,500 rpm, during acceleration and I can hear something spooling down on deceleration
I've been reading around about uppipe leak...
How does uppipe leak sound like???
Where do I really check for it??
Gaskets are OE already...

Thanks guys!

[LiL Shoaf]

Did you do any searching? A spray bottle of really soapie watter works.. It should go with out saying but I will throw it in there anyway, With the car running.. Have it safely supported so you can get under it.. With it running spray your soapy water on your connections and watch for bubbles.. becarefull, don't burn yourself and protect your face with a shield or at min, glasses over your eyes..