custom intake plenums
 

I have been looking at carbon fiber custom made intake plenums at this website. A guy e mailed me from this place and said the rear wheel dyno increase was 10hp. He also said the intake sound changes a lot. Does anyone here have any experience with these? This month's Excellence magazine has an ad saying they are on special right now, so I think they are less than what this site says.

scargoracing.com

thanks