Hey all, I'm trying to do a boost leak test on my car and need to make a tester. While I've seen tons of threads devoted to how to built the tester, I haven't found any that give the specs/sizes for the couple needed to make it. I made one earlier today with a 2.5" coupler and it only fits on the exhaust side. Any ideas? BTW, I have the stock intake on, so I need to put it directly on the turbo.