Sandeep – The answer is too look at the specs presented with the downpipe company. Most will share a dyno chart. I don’t believe you’ll see A lot regarding fuel discounts, but you ought to see a ten-40hp get. You’ll also delight in a bit snappier turbo reaction. John – https://excellentopolis.com/unleashing-performance-exploring-downpipe-options-for-the-audi-rs6-c8/