[WaterKing]

I was wondering about a sound clip too. Searched but could not find one...The Volants do have a great appearance and supposedly were designed to compliment the Volant CAI on one of Volant's owner's personal vehicle. They have them for both regular Escalades and ESV/EXT in the store right now....I called them several months ago When I found the reduced Escalade CatBack in the store but they did not have any ESV/EXT available in the store...Apparantly, the store is for Overstocked items that they are trying to unload which is why they are so low in price...If you look at all the items in their product list you will find that many are not in the store at reduced price. The engineer I talked to said the 2007-2008 EXT was a unique pipe. I did not ask him if it was the same as an ESV since I have an EXT. Just passing on what he told me. But how can you go wrong for $220 with really cheap shipping? Landed up getting a Borla system because there was no Volant EXT system available at that price at that time. Still have not put the Borla system on so can't comment. Ext's (at least mine) seem awful throaty already in stock form. I even contemplated just removing the rear resonator and putting in the Volant resonator replacement pipe just to see what it would sound like but opted for a full system for long term durability.
I talked to Borla before I bought their system because I was unsure of how the two separate tailpipes from the muffler vice the one bigger one from most other systems compared and they told me that the two separate pipes performed better. After I got the system from Borla I discover that the premuffler pipe necks down from 3.5" original size to 3.25" right at the flange of the Y pipe. It is a very smooth transition but don't know how it will effect performance, but the full length twin outlet pipes from the muffler look good. Am worried about possible drone of the Borla but will have to wait until I get the time to install it. IMHO, Differences between the regular Escalade and EXT make sound bites and drone//no drone comments not TOTALLY accurate unless they are the same model you have. I have the further complication that I will be putting on Dynatech, Kooks, or the new ARP headers in the future and that will further change things. Hope this helps someone looking at the same things I did.