Originally Posted by Megan370z

Thank you

so with stillen headers and your lower intake porting gained 20whp
there is quite a nice jump starting at 6800 to 7500rpm ( that's where the VVEL jump at his max)

there is a steady 2-6whp gain from 2600 to 6000rpm then start to open up 10whp gain at 6800. Then end up with a 20whp gain at peak.

Not bad, I wonder how much of gain is related to the porting.

Originally Posted by F.I. Inc.

Yes, they are Tony approved! Frank, when I get around to it, I may put your pipes into production. We will call them, "The FP" option.
-Tony