I have a shorty non catted DP for sale...see my thread... http://www.wrxatlanta.com/forums/showthread.php?t=13584
We have the Titek (used to be Helix) Stainless, Bellmouth, high flow catted DP's in stock for $499 with gaskets. SS
Do they still make the helix? Because that's a good bit more expensive. That is unless gaskets are a lot more expensive than I realized.
I try to stay catted - we've made 494whp through a Helix/Titek catted DP. The nice thing about these is that they come with a wideband bung already in them and they are bellmouth. SS
Gruppe-s has Helix catted for $329... if they have them in stock... which they usually don't... ok I'm worthless... There was a used Helix for $250 shipped on IWSTI a couple days ago, I'll check 4 ya later tonight.
I believe the Helix downpipe is no longer available from any of the vendors unless they stocked whole bunch before they were on backorder. Last time I was trying to place an order, they were on backorder without a ETA.