Originally Posted by Däs Schmoo
If you rip out the butterflies, it turns from a mechanical marvel that has a great compromise between low end torque and high end power into a basic OEM manifold with more congested runners.
Since you already have a powerband optimized for the higher RPMs that the Skunk2 is most effective in, there is no reason to put the OEM one back on.
Correct, but If any of you actually looked at the GSR's intake ports on the P72 head and the flow directions, you'll see why the GSR manifold works great with it....i understand the dual stage runners and what not, but just wat if...you know your always wondering and being this is a jdm b18c head, and i can decide to try this little trick out i just wanted some info before i go ripping my manifold off again..