Hi guys,


Recently purchases a used HKS BOV from one of the members off here. Its the first HKS BOV i beleive.

Anyhow... I removed the old one, plugged the recirculating hose, put the HKS on put the other hose on the other end of the bov (with an adapter to make it small enough). And now my car cant really boost and makes a very VERY high pitched whining noise when boosting and goes pretty much no where.

Checked everywhere for air leaks, couldnt find a thing?

btw car is a 2004 sti.stock besides TBE verso tune and CAI.

Any help would be greatly appreciated! cheers guys.