Here's a video of my e90 335xi with BMW Performance Exhaust... stock DP's, secondary cats stock, AFE DCI, JB4 G5 ISO, BMW flash, AMS fmic. It rips and I couldn't be happier with my choice to get the PE. I went back and forth with the VRSF, AA, Borla and a few others. Decided this was the one and absolutely no regrets.
http://www.youtube.com/watch?feature...&v=NvGK3mfMSzk