For those who have grooved later model v6 Acura or Honda, these are some pictures on how the inside looks like with variable intake runner set up. You will clearly see the hurdles that the groove has to over come before it reaches the intake valves. As a gadgetman your going to scratch your head and wonder if the groove would work. I can say it does, and MY MDX loves it. I can only dream if they (Acura) made a better groove friendly manifold. Just wanted to show some pictures for a better understanding. The bronze banana looking thing is the egr port.
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