SAI Delete - what are the real pros and cons?

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I am continually amazed at how many guys who don't know how the SAI system works, and do not understand why the SAI is necessary on our OE stock B6 1.8Ts, incorrectly believe the system is pure evil from the devil himself.

I am continually amazed at people who think SAI does a lick of good besides help pass emissions. It dead weight 30 seconds after cold start. It does very little during that 30 seconds. It is expensive to fix, easily breakable, and does nothing for the vehicle's performance.

Opinions will differ, but mine is such that it is a completely over-engineered pile of garbage .