I find it hard to believe that the inlet pipe matters all that much. The turbo inlet is just a vacuum cleaner mouth. What are you gaining from smoothing the airflow going into an impeller that is just sucking air that it's going to compress anyway?
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2004 Matrix XRS 6MT => 2008 VW R32 DSG => 2012 Audi TTRS 6MT => 2018 BMW ///M2 6MT
I'm an IT guy by trade and tech nerd by choice.
I like HPDEs, parts of US Hwy 129, NC 28, and the Cherohala Skyway.
I'm also a fan of aural pleasure.
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