Similar intake to the Ganzflow yet cheaper is the one offered by PDM Racing.
That said, BOTH are great intakes, and offer the greatest bang for the buck apparently. I'm content with my Minnam intake.
Final word, in my opinion, Cobb Tuning's intake is probably THE best. But mucho $$ and apparently there's quite a wait for it.
So to answer your question in a more direct manner, yes, by all means go ahead and purchase the Ganzflow. You won't be disappointed that's for sure.