Whats up all. I did a search and i didnt really find much that helps. I was taking a look at the magnaflow website for a new high flow cat. I ran across the California Emission Cat Converters. Now I dont live in Cali. I live in Vegas, Nevada. My question is, is that will this still produce good hp gains as a normal high flow cat will? They come in various inlet and outlet sizes 2, 2.25, 2.5 etc.... and they also have a spot for the 02 sensor and a heat sheild. I know the bigger in and outlet will help free up the exhaust flow but is it worth it? Does it sound like a hollow can? Its from magnaflow so i doubt it. I also am curious if ill pass emissions with it and ill notice a significant difference of power. Any and all responses help. Thanks.