I like full flow but not the noise. An Aero Turbine is my muffler. Any newbs reading 'straight pipe' might be advised to check with the laws in "their" state. Straight pipe is not allowed in quite a few.
You now need a boost gauge to watch for boost creep on your BEWI just bought a new 2004 jetta and I got the Kerma 2.5" turbo back. It fit like a glove and sounds better then the 3" turbo back I have on my 2003. In the exhaust world people never compare apples to apples. I bought a diamond eye kit for my powerstroke plow truck and about 3 years later the whole thing was rotted out. It was 409 stainless. I will only run 304 stainless now.
I love this forum. Thanks for the link. Don't post much but read often.Go with BUZZKEN exhaust....great prices, great guy to deal with. highly recommend!
http://forums.tdiclub.com/showthread.php?t=357956