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      03-09-2010, 01:56 PM   #5
major_kusanagi's Avatar
Drives: 09 AW/FR/CF E92 M3
Join Date: Jan 2009
Location: SF, CA

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I had the same doubt. Well, to be honest with you, I dunno. I did put a bunch of post-its around the pipe and got the engine up to 5K RPM. But it's not a controlled experiment. i.e., I dunno. However, if you actually examine the seal and groove on both ends of the pipe, it is very tight. In fact, the groove itself should seal just as tightly as the stock pipe.

Originally Posted by ersin View Post
Thanks. I see that you say the electrical tape is holding up well. You also say that it seems to do its job, but how do you know it is not leaking unfiltered air? Just curious.
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