Sandeep – The solution is too look at the specs provided by the downpipe maker. Most will share a dyno chart. I don’t believe that you’ll see much with regards to gas price savings, but it is best to see a ten-40hp achieve. You’ll also appreciate a little snappier turbo https://excellentopolis.com/unleashing-performance-exploring-downpipe-options-for-the-audi-rs6-c8/