Hey sorry for the delay in getting back here but something called "work" (and its a four letter word too) got in the way. My Viper is at Chuck's for the week (his shop is about 75 miles from me), I dropped it off last Sunday (4/5) and should pick it up this weekend. So have to wait till then on the sound description. Chuck said that the Viper will run way cooler, especially the sills. Also that there should be a small bump in power in the range of 15-20 with the high flows and Corsa. Chuck has done a number of Corsa+Roe installs and apparently likes and recommends this setup. Chuck also was of the opinion that the Corsa+high flows was not as loud as the Belanger / Magnaflow system.
I didn't want to try just deleting the secondary cats and leaving only the primary cat. As far as I have been told, the secondary cat is the better flowing cat of the two but it is usually the one taken off since it is easier to do. Plus I wanted to keep the stock parts unmolested in case I need to change back to stock configuration for whatever reason. Bluesrt has it right about the Corsa, very well made, you easily see and feel the quality when you pick up the exhaust and take a look. I actually have to say the same about the Roe cats too. (my comment is NOT made to weigh in on the Roe v. Random debate)(Hey maybe Random should change its name to Wade?). I originally wanted to have Chuck also put in the Mopar Race controller but $$$$ became a little short when this great economy hit making me lose my raise, bonus and 401k match. The plan now is to do the Mopar ecm in the fall. I will report back when I pick it up.