which exhaust??

Ok so i'm trying to research exhausts form the WRX I am about to buy. and I have found 2 that intrest me.

has anyone heard of this hlix power package it comes with up pipe, down pipe, and exhaust can be seen here > http://www.gruppe-s.com/Subaru/PowerPackage1.htm

this package is supposed to add 30whp, has anyone heard anything about this? does it sound good?

Or should i get the up pipes and downpipes and go with an exhaust like the Greddy Evo or the HKS Carbon-Ti exhaust?? any reccommendations are greatly apreciated, also if anyone thinks that I should go with a different exhaust speak up.

-Thanks

i've heard a lot of great things with a divorced downpipe. but any downpipe will definately give you extra power. uppipes for the most part seem pretty similar. i'm getting ready to upgrade my uppipe/downpipe. i think i'm gonna go with a divorced wastegate.

cool dude, thanks, how much more is a divorced downpipe? are there any substantial power gains with the divorced over a normal downpipe?

just checkout the vishnu site they have a pretty good description of why a divorced wastegate exhaust is better. i know vishnu makes one and there are a couple others out there like that