Sandeep – The answer is simply too look at the specs specified via the downpipe manufacturer. Most will share a dyno chart. I don’t think you’ll see A lot concerning gas cost savings, but you should see a ten-40hp achieve. You’ll also get pleasure from a bit snappier turbo response. https://brooksxchlp.wikipublicist.com/4664466/the_smart_trick_of_rs6_c8_downpipes_that_no_one_is_discussing