Perhaps it is supposed to have one...apparently mine didnt!

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I need to do a boost leak test before my retune on Tuesday.

Do they have 4" PVC end tanks at Home Depot/lowes? Can you just drill and then screw in compressor fitting into PVC? Or do you install a tire valve stem?

 

I just did a boost leak test thanks to James for the recommendation, I found it in 10 minutes. Moddiction i found that a 3" pvc cap has an OD of 4" and thats what i used. I drilled a hole through the top and used a high pressure valve stem that's metal and threaded with a gasket on it. But i think what was key for me was having a smoke machine to fill the entire system. I just removed a vacuum line from the manifold and added the smoke there. Like James said cheap easy and takes very little time.

 

Yup I just went to lowes and got the 3" PVC cap and a valve stem. I'll test it tomorrow. No smoke machine though so I'll have to use the soap and water method to look for leaks.

 

Awesome! Yea, the soap and water worked fine for me.

KSF22, where was the leak? Did you build the pressure with an air tank and then add the smoke?

 

Added smoke first then hooked up my air chuck to a pvc cap with a tire valve stem. I'll try and get a picture up so you can see what I mean. Soapy water works good but I had access to the smoke machine and wanted to try it.
So far found 2 leaks one at each end of the intercooler so I have to pull the bumper again. But they leaked with basically no air pressure so I'm sure I'm losing quite a bit of boost.
My kit has cheap silicone couplers does anyone know where to get good intercooler boots? Aeroquip in town here wants over $30 per coupler.

 

Can someone post a complete diy for this? Very interested

 

I'll try to do a write-up on this with pictures this weekend.