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      04-09-2007, 06:01 PM   #113
Red Star Rising
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Originally Posted by M3to335 View Post
I thought you said at the begining of the post to make sure to do both?
You have to cover the plugs left on the pre compression intake ducts when you remove the hoses. You have to leave the hoses open. They will release the pressure.

I am going to cover one to see if forcing all the air out of just one valve will make it louder or not.
AA M3 is gone...the new...