I personally know the guy ( Brian ) from DPP . Great guy to deal with.

Has a pretty nice 3rd gen too

 

Here's another 4" turbo back exhaust I found for a pretty good price. You have to weld the hangers and stock flange on. But not to bad of a price if you have welding skills. Made by Diamond Eye Performance

http://www.pureautogroup.com/shop/19...us-p-1361.html

 

There's more out there than i thought.

 

That Diamond Eye one looks like it's smaller than 4" until the straight pipe before the muffler.

 

I don't think it looks like the one in the picture.

 

the diamond eye kit has a picture of a system for 3rd gens. look closely at the picture and you'll see the flange there and you can tell by the position and shape of the downpipe. i'd wanna call that place to verify that it will fit.

 

After looking at their website I think it has a smaller then 4" DP. Thinking 3.5, hence the sale of the 3-3.5 adapter and all the 3" DP they offer for sale. Just my .02 but someone needs to call and find out for sure.
DS79

 

My 4" kit I bought from Source was labelled as diamond eye so you all know.