Juan – Normally a downpipe is good for ten-20hp, but it could be a great deal much more on some programs. I’d advise on the lookout for an aftermarket unit that includes a dyno chart. Thanks a good deal in your returned e mail! I’ve presently mounted a downpipe, so https://goudymotors.com/artikeltext-hochladen-amg-gt-63-downpipes/