Unlike the Quattro version the frontrack Milltek does not have a downpipe, and is slip jointed into the existing stock downpipe. If you want to add a downpipe you must order one either from Milltek (do a search for Aranda A4, he did this on his FWD A4) or the one from LaBree. (which is what I did) Keep in mind that if you order just the down pipe you will be short about 2-3 feet of tubing. Knowing this I ordered a 4 foot section of stainless with an identical flange already welded onto the tubing from LaBree in addition to the downpipe. The total for both the downpipe and the extra 4 foot section of tubing with flange prewelded was 300 dollars.