I recommend you get an aftermarket exhaust
system.
Hack jobs, like exhaust cut out and Midus straight pipes are just that...hack jobs. They're going to wobble, leak and will make the car sound more like an SRT4 with indigestion then anything. To say nothing of the legal or social impact running muffler/catless will do.
If you want loud, Tomei Powered recently released their Titanium muffler system:
http://www.tomeipowered-usa.com/usa/...n/jason-e.html
If you want cost effective, call up Mike at Road Race engineering and he will build you something to your exact specifications (single pipe/muffler/bling tips/whatever).
The best way to avoid a mistake is to do it right the first time.
Best,
Blaze