I'm with the other guys. Mine is about 8 inches after the turbo. Ran it like that WITH the cats for 18,000 miles. So the turbo killing the cats is a bunch of BS (mine looked like brand new when I took them off). I just recently took the cats off and my WB reading didn't change. I'm also running a speed density tune and my VE table only needed changed slightly after I took the cats off. I think that was do to the fact that I had a free'er (sp?) flowing exhaust. I had a full tail pipe out the stock location too. So take it for a guy who's "been there done that" that it WILL work fine both with cats and without after the turbo.

 

im not sure but its basically a stock style exhaust pipe out of the turbo but i fabbed it out of 3 inch.